Chat
1
-1
Internet
2
-1
Bussines and finance
3
-1
Energy
4
-1
IT
5
-1
Internet slang
6
-1
Aviation
7
-1
1
Mediawiki acronyms
0
<div style="margin:auto; display:inline-block;">
<h2 id="References">References</h2>
<li><b>
</b>
1
0
0
–
</li>
2
1
0
2
MediaWiki Lingo
0
<dl>
</dl>
<dt>
</dt>
1
0
0
<dd>
</dd>
2
1
0
3
MediaWiki 2
0
<div class="mw-heading mw-heading2"><h2 id="A">
>See also<
<li>
—
1
0
0
</li>
2
1
0
4
wikitonary
0
</ul>
<span class="mw-headline" id="See_also">See also
<li>
:
1
0
0
</li>
2
1
0
5
MediaWiki 3
0
<div class="mw-heading mw-heading2"><h2 id="0–9">
<h2 id="See_also">See also</h2>
<li>
—
1
0
0
</li>
2
1
0
<sup class="
</sup>
0
3
-1
6
MediaWiki table
0
<th>Abbreviation
<div class="mw-heading mw-heading2"><h2 id="See_also">
<tr>
</td>
1
0
0
<td>
</td></tr>
2
1
0
<th>Abbreviation
</th></tr>
0
3
0
Wikipedia - List of business and finance abbreviations
https://en.wikipedia.org/wiki/List_of_business_and_finance_abbreviations
1
-1
402
2025-01-25T21:07:29.122+01:00
[3]
wiki.zdechov.net terminology
https://wiki.zdechov.net/wiki/Terminologie
2
-1
73
2025-01-25T21:07:29.356+01:00
Wikipedia - List of energy abbreviations
https://en.wikipedia.org/wiki/List_of_energy_abbreviations
3
-1
821
2025-01-25T21:07:29.685+01:00
[4]
Wikipedia - List of Computing and IT abbreviations
https://en.wikipedia.org/wiki/List_of_computing_and_IT_abbreviations
5
-1
1491
2025-01-25T21:07:30.013+01:00
[5]
English internet slang
https://en.wiktionary.org/wiki/Appendix%3AEnglish_internet_slang
4
-1
321
2025-01-25T21:07:30.231+01:00
[6]
Wikipedia - Aviation
https://en.wikipedia.org/wiki/List_of_aviation,_avionics,_aerospace_and_aeronautical_abbreviations
6
-1
1253
2025-01-25T21:07:30.591+01:00
[7]
100B-FX
100BASE-FX
[5]
[4]
100B-TX
100BASE-TX
[5]
[4]
100BVG
100BASE-VG
[5]
[4]
10B-F
10BASE-F
[5]
[4]
10B-FB
10BASE-FB
[5]
[4]
10B-FL
10BASE-FL
[5]
[4]
10B-FP
10BASE-FP
[5]
[4]
10B-T
10BASE-T
[5]
[4]
10B2
10BASE-2
[5]
[4]
10B5
10BASE-5
[5]
[4]
10q
Thank you
[6]
[5]
10x
Thanks
[6]
[5]
1GL
first-generation programming language
[5]
[4]
1H
First half of the year
[3]
[1]
1NF
first normal form
[5]
[4]
2
too, or to
[6]
[5]
24/7
24 hours a day, seven days a week
[3]
[1]
286
Intel 80286 processor
[5]
[4]
2B1Q
2 binary 1 quaternary
[5]
[4]
2FA
Two-factor authentication
[5]
[4]
2GL
second-generation programming language
[5]
[4]
2NF
second normal form
[5]
[4]
386
Intel 80386 processor
[5]
[4]
3GL
third-generation programming language
[5]
[4]
3GPP
3rd Generation Partnership Project – 3G comms
[5]
[4]
3GPP2
3rd Generation Partnership Project 2
[5]
[4]
3NF
third normal form
[5]
[4]
4
For
[6]
[5]
486
Intel 80486 processor
[5]
[4]
4B5BLF
4-bit 5-bit local fiber
[5]
[4]
4GL
fourth-generation programming language
[5]
[4]
4NF
fourth normal form
[5]
[4]
5GL
fifth-generation programming language
[5]
[4]
5NF
fifth normal form
[5]
[4]
6NF
sixth normal form
[5]
[4]
80/20
According to the Pareto principle, for many events, roughly 80% of the effects come from 20% of the causes
[3]
[1]
802.11
wireless LAN
[5]
[4]
8B10BLF
8-bit 10-bit local fiber
[5]
[4]
<3
Love
[6]
[5]
A C?
AH! SI?
[6]
[5]
A11Y
Accessibility
[5]
[4]
AAA
Authentication Authorization, Accounting
[5]
[4]
AABB
Axis Aligned Bounding Box
[5]
[4]
AAC
Advanced Audio Coding
[5]
[4]
AAF
As A Friend
[6]
[5]
AAL
ATM Adaptation Layer
[5]
[4]
AALC
ATM Adaptation Layer Connection
[5]
[4]
AARP
AppleTalk Address Resolution Protocol
[5]
[4]
ABAC
Attribute-Based Access Control
[5]
[4]
ABCL
Actor-Based Concurrent Language
[5]
[4]
ABI
Application Binary Interface
[5]
[4]
ABM
Asynchronous Balanced Mode
[5]
[4]
ABR
Area Border Router
[5]
[4]
Auto Baud-Rate detection
[5]
[4]
Available Bitrate
[5]
[4]
Average Bitrate
[5]
[4]
Adaptive Bitrate (Streaming)
[5]
[4]
AC
Acoustic Coupler
[5]
[4]
Alternating Current
[5]
[4]
Altocumulus
Cloud type
[7]
[6]
Advisory circular[2]
Information and guidance publication
[7]
[6]
Alternating current
[4]
[3]
ACD
Automatic Call Distributor
[5]
[4]
ACE
Advanced Computing Environment
[5]
[4]
Actuator control electronics
[7]
[6]
Area Control Error (electricity)
[4]
[3]
ACID
Atomicity Consistency Isolation Durability
[5]
[4]
ACK
ACKnowledgement
[5]
[4]
Amsterdam Compiler Kit
[5]
[4]
ACL
Access Control List
[5]
[2]
[4]
Active Current Loop
[5]
[4]
ACM
Association for Computing Machinery
[5]
[4]
Air cycle machine
Part of A/C air conditioning system
[7]
[6]
ACME
Automated Classification of Medical Entities
[5]
[4]
ACP
Airline Control Program
[5]
[4]
Audio Control Panel
[7]
[6]
ACPI
Advanced Configuration and Power Interface
[5]
[4]
ACR
Allowed Cell Rate
[5]
[4]
Attenuation to Crosstalk Ratio
[5]
[4]
Avionic Communication Router
[7]
[6]
AD
Active Directory
[5]
[4]
Administrative Domain
[5]
[4]
Airworthiness Directive
[7]
[6]
ADAD
Another Day Another Dollar
[6]
[5]
ADB
Apple Desktop Bus
[5]
[4]
ADC
Analog-to-Digital Converter
[5]
[4]
Apple Display Connector
[5]
[4]
Air data computer
[7]
[6]
ADCCP
Advanced Data Communications Control Procedures
[5]
[4]
ADIH
Another Day In Hell
[6]
[5]
ADIP
Another Day in Paradise
[6]
[5]
ADO
ActiveX Data Objects
[5]
[4]
ADR
Alternative dispute resolution
[3]
[1]
Asset Depreciation Range (finance)
[4]
[3]
ADSL
Asymmetric Digital Subscriber Line
[5]
[4]
ADT
Abstract Data Type
[5]
[4]
AE
Adaptive Equalizer
[5]
[4]
AEAP
As Early As Possible
[6]
[5]
AES
Advanced Encryption Standard
[5]
[4]
AF
Anisotropic Filtering
[5]
[4]
As fuck
[6]
[5]
AFAICR
As far as I can recall / remember
[6]
[5]
AFAICS
As far as I can see
[6]
[5]
AFAICT
As far as I can tell
[6]
[5]
AFAIK
As far as I know
[6]
[5]
AFAIR
As far as I remember
[6]
[5]
AFAIU
As far as I understand
[6]
[5]
AFAIUI
As far as I understand it
[6]
[5]
AFAP
As far as possible (cf ASAP)
[6]
[5]
AFK
Away from keyboard
[6]
[5]
AFP
Apple Filing Protocol
[5]
[4]
AGI
Artificial General Intelligence
[5]
[4]
AGP
Accelerated Graphics Port
[5]
[4]
AH
Active Hub
[5]
[4]
AI
Artificial Intelligence
[3]
[5]
[1]
[4]
AIX
Advanced Interactive eXecutive
[5]
[4]
AJAX
Asynchronous JavaScript and XML
[2]
AL
Active Link
[5]
[4]
Access List
[5]
[4]
ALAC
Apple Lossless Audio Codec
[5]
[4]
ALGOL
Algorithmic Language
[5]
[4]
ALOL
Actually laughing out loud
[6]
[5]
ALSA
Advanced Linux Sound Architecture
[5]
[4]
ALU
Arithmetic and Logical Unit
[5]
[4]
AM
Account manager
[3]
[1]
Access Method
[5]
[4]
Active Matrix
[5]
[4]
Active Monitor
[5]
[4]
Allied Mastercomputer
[5]
[4]
Amplitude Modulation
[5]
[4]
AMA
Ask me anything
[6]
[5]
AMD
Advanced Micro Devices
[5]
[4]
AMOLED
Active-Matrix Organic Light-Emitting Diode
[5]
[4]
AMQP
Advanced Message Queuing Protocol
[5]
[4]
AMR
Audio Modem Riser
[5]
[4]
Automated meter reading also known as Automatic Meter Reading
[4]
[3]
ANN
Artificial Neural Network
[5]
[4]
Annunciator panel
Caution warning system normally containing visual and audio alerts to the pilot
[7]
[6]
ANSI
American National Standards Institute
[5]
[4]
[4]
[3]
ANT
Another Neat Tool
[5]
[4]
Antenna (radio)
[7]
[6]
AOP
Adjusted operating profit
[3]
[1]
Annual operating plan
[3]
[1]
Aspect-Oriented Programming
[5]
[4]
Airport operating plan
[7]
[6]
AOT
Ahead-Of-Time
[5]
[4]
AP
Accounts payable
[3]
[1]
Access Point
[2]
Autopilot
[7]
[6]
Action Point
[4]
[3]
APCI
Application-Layer Protocol Control Information
[5]
[4]
API
Application Programming Interface
[5]
[2]
[4]
American Petroleum Institute (oil)
[4]
[3]
APIC
Advanced Programmable Interrupt Controller
[5]
[4]
APIPA
Automatic Private IP Addressing
[5]
[4]
APL
A Programming Language
[5]
[4]
APR
Apache Portable Runtime
[5]
[4]
Actual peak reduction (e.g. in demand response systems) (electricity)
[4]
[3]
AR
Accounts receivable
[3]
[1]
Airworthiness review
[7]
[6]
Authorization required
[7]
[6]
As required
[7]
[6]
ARC
Adaptive Replacement Cache
[5]
[4]
Advanced RISC Computing
[5]
[4]
Airworthiness review certificate
[7]
[6]
ARIN
American Registry for Internet Numbers
[5]
[4]
ARM
Advanced RISC Machines
[5]
[4]
AROS
AROS Research Operating System
[5]
[4]
ARP
Address Resolution Protocol
[5]
[4]
Aerodrome reference point
[7]
[6]
ARPA
Address and Routing Parameter Area
[5]
[4]
Advanced Research Projects Agency
[5]
[4]
ARPANET
Advanced Research Projects Agency Network
[5]
[4]
ARPU
Average revenue per user
[3]
[1]
AS
Autonomous System
[2]
Access Server
[5]
[4]
ASAP
As soon as possible
[6]
[5]
ASCII
American Standard Code for Information Interchange
[5]
[4]
ASG
Abstract Semantic Graph
[5]
[4]
ASIC
Application-Specific Integrated Circuit
[5]
[4]
ASIMO
Advanced Step in Innovative Mobility
[5]
[4]
ASL or A/S/L
Age / sex / location
[6]
[5]
ASLP or A/S/L/P
Age, sex, location, picture
[6]
[5]
ASLR
Address Space Layout Randomization
[5]
[4]
ASM
Algorithmic State Machine
[5]
[4]
Airspace management
[7]
[6]
Available seat miles
[7]
[6]
ASMP
Asymmetric Multiprocessing
[5]
[4]
ASN.1
Abstract Syntax Notation 1
[5]
[4]
ASP
Average selling price
[3]
[1]
Active Server Pages
[5]
[4]
Application Service Provider
[5]
[4]
ASR
Asynchronous Signal Routine
[5]
[4]
Airport surveillance radar
[7]
[6]
AST
Abstract Syntax Tree
[5]
[4]
AT
Advanced Technology
[5]
[4]
Access Time
[5]
[4]
Active Terminator
[5]
[4]
ATA
Advanced Technology Attachment
[5]
[4]
Air Transport Association
[7]
[6]
ATAG
Authoring Tool Accessibility Guidelines
[5]
[4]
Air Transport Action Group
A coalition of aviation industry experts focusing on sustainable development issues.
[7]
[6]
ATAPI
Advanced Technology Attachment Packet Interface
[5]
[4]
ATB
All the best
[6]
[5]
ATEOTD
At The End of the Day
[6]
[5]
ATFQ
Answer the fucking / full question
[6]
[5]
ATM
Asynchronous Transfer Mode
[5]
[4]
At the moment
[6]
[5]
Air traffic management
[7]
[6]
ATX
Advanced Technology eXtended
[2]
AV
Antivirus
[5]
[4]
AVC
Advanced Video Coding
[5]
[4]
AVI
Audio Video Interleaved
[5]
[4]
AWK
Aho Weinberger Kernighan
[5]
[4]
AWOL
Absent Without (Official) Leave
[6]
[5]
AWS
Amazon Web Services
[5]
[4]
AWT
Abstract Window Toolkit
[5]
[4]
AYBABTU (also abbreviated as AYB)
all your base are belong to us (from the video game Zero Wing)
[6]
[5]
Ajax
Asynchronous JavaScript and XML
[5]
[4]
AoE
ATA over Ethernet
[5]
[4]
AuthIP
Authenticated Internet Protocol
[5]
[4]
AuthN
Authentication
[5]
[4]
AuthZ
Authorization
[5]
[4]
B TAM
Basic Telecommunications Access Method
[5]
[4]
B2B
Business-to-business
[3]
[1]
Business-to-Business
[5]
[4]
Business to Business
[6]
[5]
B2C
Business-to-consumer
[3]
[1]
Business-to-Consumer
[5]
[4]
Business to Customer
[6]
[5]
B2E
Business-to-Employee
[5]
[4]
B2G
Business-to-government
[3]
[1]
B4
Before
[6]
[5]
BAL
Basic Assembly Language
[5]
[4]
BAM
Block Availability Map
[5]
[4]
BASIC
Beginner's All-Purpose Symbolic Instruction Code
[5]
[4]
BAU
Business as usual
[3]
[1]
BBIAB
Be back in a bit
[6]
[5]
BBL/BBS
Be back later / shortly / soon
[6]
[5]
BBP
Baseband Processor
[5]
[4]
BBQ
Barbecue. While not Internet slang in itself, it is often combined with other initialisms as a point of satire, absurdity, or a non-sequitur. For example OMG WTF BBQ.
[6]
[5]
BBS
Bulletin Board System
[5]
[4]
BC
Business Continuity
[5]
[4]
Back course
Or 'BCRS'
[7]
[6]
BCC
Blind Carbon Copy
[5]
[4]
BCD
Binary Coded Decimal
[5]
[4]
Boot Configuration Data
[5]
[4]
Barrel per day, on calendar days
[4]
[3]
BCNF
Boyce–Codd normal form
[5]
[4]
BCNU
Be seein' you
[6]
[5]
BCP
Business Continuity Planning
[5]
[4]
Best Current Practice
[5]
[4]
Blackstart Capability Plan
[4]
[3]
BE
Backend
[5]
[4]
BEEP
Blocks Extensible Exchange Protocol
[5]
[4]
BEP
Break-even point
[3]
[1]
BER
Bit Error Rate
[5]
[4]
Beyond economic repair
Hull loss
[7]
[6]
BF
Best Friend / Boyfriend
[6]
[5]
BFD
Bidirectional Forwarding Detection
[5]
[4]
Binary File Descriptor
[5]
[4]
BFF
Best Friends Forever
[6]
[5]
BFN
Bye For Now
[6]
[5]
BFS
Breadth-First Search
[5]
[4]
BFT
Byzantine Fault Tolerant
[5]
[4]
BGP
Border Gateway Protocol
[5]
[2]
[4]
BI
Business intelligence
[3]
[1]
Business Intelligence
[5]
[4]
BIC
Bank identifier code
[3]
[1]
BINAC
Binary Automatic Computer
[5]
[4]
BIND
Berkeley Internet Name Domain
[5]
[4]
BIOS
Basic Input Output System
[5]
[2]
[4]
BJT
Bipolar Junction Transistor
[5]
[4]
BLS
Balance sheet
[3]
[1]
Bureau of Labor Statistics of United States Department of Labor
[4]
[3]
BMP
Basic Multilingual Plane
[5]
[4]
BNC
Baby Neill Constant
[5]
[4]
BOFH
Bastard operator from hell
[6]
[5]
BOINC
Berkeley Open Infrastructure for Network Computing
[5]
[4]
BOM
Bill of materials
[3]
[1]
Byte Order Mark
[5]
[4]
bill of material
[7]
[6]
BOOTP
Bootstrap Protocol
[5]
[4]
BPDU
Bridge Protocol Data Unit
[5]
[4]
BPEL
Business Process Execution Language
[5]
[4]
BPL
Broadband over Power Lines
[5]
[4]
Broadband over power line
[4]
[3]
BPM
Business Process Management
[5]
[4]
Business Process Modeling
[5]
[4]
BPO
Business process outsourcing
[3]
[1]
BPR
Brief project report
[3]
[1]
bypass ratio
[7]
[6]
BPV
Bank payment voucher
[3]
[1]
BRB
Be right back
[6]
[5]
BRD
Business requirements document
[3]
[1]
BRM
Business Reference Model
[5]
[4]
BRMS
Business Rule Management System
[5]
[4]
BRR
Business Readiness Rating
[5]
[4]
BRS
Broadband Radio Service
[5]
[4]
BRU
Business recovery unit
[3]
[1]
BRV
Bank receipt voucher
[3]
[1]
BSA
Business Software Alliance
[5]
[4]
BSB
Backside Bus
[5]
[4]
BSD
Berkeley Software Distribution
[5]
[4]
BSOD
Blue Screen of Death
[6]
[5]
BSS
Block Started by Symbol
[5]
[4]
BSoD
Blue Screen of Death
[5]
[4]
BT
BitTorrent
[5]
[4]
Bluetooth
[5]
[4]
BTDT
Been there done that
[6]
[5]
BTTT
Back to the top
[6]
[5]
BTW
By the way
[3]
[6]
[1]
[5]
BU
Business unit
[3]
[1]
BUSI
Business
[3]
[1]
BW
Bandwidth
[5]
[4]
BYOD
Bring Your Own Device
[5]
[4]
Bash
Bourne-again shell
[5]
[4]
BiDi
Bi-Directional
[5]
[4]
Blob
Binary large object
[5]
[4]
Blog
Web Log
[5]
[4]
Byte
By eight (group of 8 bits)
[5]
[4]
C&F
Cost With Freight
[3]
[1]
C2B
Consumer-to-business
[3]
[1]
C2C
Consumer-to-consumer
[3]
[1]
CA
Current account (disambiguation)Current Account
[3]
[1]
Certificate authority
[5]
[4]
Captain
[7]
[6]
Carbon Abatement- increasing carbon-neutrality
—Control area (EU) – The portion of the generation and transmission system controlled by a single transmission system operator. (See also TSO).
[4]
[3]
CAD
Computer-aided design
[5]
[4]
CAE
Computer-aided engineering
[5]
[4]
CAGR
Compound annual growth rate
[3]
[1]
CAI
Computer-aided instruction
[5]
[4]
Caution Advisory Panel
Sometimes spelled "caution-advisory" or "caution/advisory". Also known as annunciator panel or Centralized Warning Panel (CWP)
[7]
[6]
CAID
Computer-aided industrial design
[5]
[4]
CAM
Computer-aided manufacturing
[5]
[4]
cockpit area microphone
Part of a cockpit voice recorder
[7]
[6]
Compact Auxiliary Module
[4]
[3]
CAO
Chief administrative officer or chief accounting officer
[3]
[1]
CAP
Consistency availability partition tolerance (theorem)
[5]
[4]
cabin attendant panel
[7]
[6]
Capacity market programs
—Climate Action Plan
[4]
[3]
CAPEX
Capital expenditure
[3]
[1]
CAPM
Capital asset pricing model[1]
[3]
[1]
Capital asset pricing model
[4]
[3]
CAPTCHA
Completely automated public Turing test to tell computers and humans apart
[5]
[4]
CAQ
Computer-aided quality assurance
[5]
[4]
CASE
Computer-aided software engineering
[5]
[4]
CAT
Computer-aided translation
[5]
[4]
CBOE
Collateralized debt obligation or chief data officer
[3]
[1]
CC
Carbon copy
[5]
[4]
Combined cycle see also CCPP and CCGT
[4]
[3]
CD
Compact Disc
[5]
[4]
Contract Demand
[4]
[3]
CD-R
CD-Recordable
[5]
[4]
CD-ROM
CD Read-Only Memory
[5]
[4]
CD-RW
CD-Rewritable
[5]
[4]
CDE
Common Desktop Environment
[5]
[4]
CDM
Change and data management
[3]
[1]
Clean Development Mechanism
[4]
[3]
CDMA
Code Division Multiple Access
[2]
Code-division multiple access
[5]
[4]
CDN
Content delivery network
[5]
[4]
CDP
Cisco Discovery Protocol
[5]
[4]
Continuous data protection
[5]
[4]
CDS
Credit default swap
[3]
[1]
CDSA
Common Data Security Architecture
[5]
[4]
CEO
Chief executive officer
[3]
[1]
CERT
Computer emergency response team
[5]
[4]
CES
Consumer Electronics Show
[5]
[4]
CF
Compact Flash
[5]
[4]
CFA
Chartered Financial Analyst
[3]
[1]
CFC
Consumption of fixed capital
[3]
[1]
CFCT
Cash flow cycle time
[3]
[1]
CFD
Contract for difference
[3]
[1]
Computational fluid dynamics
[5]
[4]
CFG
Context-free grammar
[5]
[4]
Control-flow graph
[5]
[4]
constant frequency generator
[7]
[6]
CFM
Certified Financial Manager
[3]
[1]
CFO
Chief Financial Officer
[3]
[1]
CFS
Consolidated Financial Statement
[3]
[1]
cubic feet per second
[4]
[3]
CG
Computer graphics
[5]
[4]
center of gravity
[7]
[6]
CGA
Color graphics array
[5]
[4]
CGI
Common Gateway Interface
[5]
[4]
Computer-generated imagery
[5]
[4]
CGT
Computational Graph Theory
[5]
[4]
CHAP
Challenge–handshake authentication protocol
[5]
[4]
CHS
Cylinder–head–sector
[5]
[4]
CIA
Certified Internal Auditor
[3]
[1]
CIDR
Classless inter-domain routing
[5]
[4]
CIF
Cost Insurance With Freight
[3]
[1]
CIFS
Common Internet Filesystem
[5]
[4]
CIM
Common Information Model
[5]
[4]
CIMA
Chartered Institute of Management Accountants
[3]
[1]
CIO
Chief Information Officer, Chief Innovation Officer or Chief Investment Officer
[3]
[1]
Chief information officer
[5]
[4]
CIP
Carriage and Insurance Paid
[3]
[1]
Critical Infrastructure Protection (US)
—see also EPCIP European Programme for Critical Infrastructure Protection
[4]
[3]
CIR
Committed information rate
[5]
[4]
CISA
Certified Information Systems Auditor
[3]
[1]
CISC
Complex-instruction-set computer
[5]
[4]
CISO
Chief Information Security Officer
[3]
[1]
CIT
Computer information technology
[5]
[4]
CJK
Chinese, Japanese, and Korean
[5]
[4]
CJKV
Chinese, Japanese, Korean, and Vietnamese
[5]
[4]
CKM
Customer Knowledge Management
[3]
[1]
CLI
Command line interface
[5]
[4]
CLO
Chief Legal Officer
[3]
[1]
CLR
Common Language Runtime
[5]
[4]
Clear
Seen on GFA and is used for sky coverage
[7]
[6]
CM
Configuration management
[5]
[4]
Content management
[5]
[4]
CMA
Certified Management Accountant
[3]
[1]
CMDB
Configuration management database
[5]
[4]
CMFB
Committee on monetary, finance and balance of payments statistics
[3]
[1]
CMIIW
Correct me if I'm wrong
[6]
[5]
CMMI
Capability Maturity Model Integration
[5]
[4]
CMO
Chief Marketing Officer
[3]
[1]
Certificate Management Office
FAA
[7]
[6]
CMOS
Complementary metal–oxide–semiconductor
[5]
[4]
CMS
Content management system
[5]
[4]
CN
Canonical Name
[5]
[4]
Common Name
[5]
[4]
CNC
Computerized numerical control
[5]
[4]
CNG
Cryptographic Next Generation
[5]
[4]
Compressed natural gas
[4]
[3]
CNR
Communications and Networking Riser
[5]
[4]
COA
Chart of accounts
[3]
[1]
COB
Close of Business
[3]
[1]
Close Of Business
[6]
[5]
COBOL
Common Business-Oriented Language
[5]
[4]
COC –
Cost of Debt[4] or Cash on Delivery
[3]
[1]
COE
Center of Excellence or Cost of Equity[5]
[3]
[1]
U.S. Army Corps of Engineers
[4]
[3]
COGS
Cost of Goods Sold
[3]
[1]
COM
Component Object Model or communication
[5]
[4]
COO
Chief Operating Officer
[3]
[1]
CORBA
Common Object Request Broker Architecture
[5]
[4]
CORS
Cross-origin resource sharing
[5]
[4]
COTS
Commercial off-the-shelf
[5]
[7]
[4]
[6]
CP/M
Control Program/Monitor
[5]
[4]
CPA
Certified Public Accountant
[3]
[1]
Cell processor architecture
[5]
[4]
Closest point of approach
[7]
[6]
California Power Authority
[4]
[3]
CPAN
Comprehensive Perl Archive Network
[5]
[4]
CPI
Chief People Officer also Chief Procurement Officer
[3]
[1]
Consumer Price Index
[4]
[3]
CPQ
Configure, Price, Quote
[3]
[1]
CPRI
Common Public Radio Interface
[5]
[4]
CPS
Characters per second
[5]
[4]
Cycles per second
[7]
[6]
Control Performance Standard
—Cycles per second (hertz)
[4]
[3]
CPU
Central processing unit
[3]
[5]
[1]
[4]
Central Processing Unit
[2]
CQRS
Command Query Responsibility Segregation
[5]
[4]
CQS
Command–query separation
[5]
[4]
CR
Carriage return
[5]
[4]
CRAN
Comprehensive R Archive Network
[5]
[4]
CRC
Cyclic redundancy check
[5]
[4]
CRLF
Carriage return line feed
[5]
[4]
CRM
Customer Relationship Management
[3]
[5]
[1]
[2]
[4]
Crew resource management
[7]
[6]
CRS
Computer Reservations System
[5]
[4]
CRT
Cathode-ray tube
[5]
[7]
[4]
[6]
Capacity Reservation Tariff
[4]
[3]
CRUD
Create, read, update and delete
[5]
[4]
CS
Cable Select
[5]
[4]
Computer Science
[5]
[4]
certification specification (EASA)
[7]
[6]
CSE
Computer science and engineering
[5]
[4]
CSI
Corporate social investment
[3]
[1]
Common System Interface
[5]
[4]
CSM
Compatibility support module
[5]
[4]
CSMA/CD
Carrier-sense multiple access with collision detection
[5]
[4]
CSO
Chief security officer
[3]
[1]
cycles since overhaul
[7]
[6]
CSP
Cloud service provider
[5]
[4]
Communicating sequential processes
[5]
[4]
Country Strategy Paper
—Curtailment service provider
[4]
[3]
CSR
Corporate social responsibility
[3]
[1]
CSRF
Cross-site request forgery
[5]
[4]
CSS
Cascading Style Sheets
[2]
Cascading style sheets
[5]
[4]
Content-scrambling system
[5]
[4]
Closed-source software
[5]
[4]
Cross-site scripting
[5]
[4]
cabin services system
[7]
[6]
CSV
Comma-separated Values
[2]
Comma-separated values
[5]
[4]
CT
Computerized tomography
[5]
[4]
Combustion turbine (electricity)
[4]
[3]
CTA
Call to action
[3]
[1]
CTAN
Comprehensive TeX Archive Network
[5]
[4]
CTC
Cost to company
[3]
[1]
CTCP
Client-to-client protocol
[5]
[4]
CTFE
Compile-time function execution
[5]
[4]
CTI
Computer telephony integration
[5]
[4]
CTL
Computation tree logic
[5]
[4]
CTM
Close To Metal
[5]
[4]
CTO
Chief technology officer
[3]
[1]
CTS
Clear to send
[5]
[4]
CTSS
Compatible Time-Sharing System
[5]
[4]
CU
See you (later)
[6]
[5]
CUA
Common User Access
[5]
[4]
CUSIP number
Committee on Uniform Security Identification Procedures number
[3]
[1]
CVE
Common Vulnerabilities and Exposures
[5]
[4]
CVP
Cost volume profit
[3]
[1]
CVS
Concurrent Version Control
[2]
Concurrent Versions System
[5]
[4]
CX
Customer experience
[3]
[5]
[1]
[4]
CXO
Any chief officer(s), x being a placeholder.
[3]
[1]
CYA
See ya OR Cover Your Ass
[6]
[5]
Corp.
Corporation
[3]
[1]
Cr
Credit
[3]
[1]
D/L
Download
[6]
[5]
DAC
Digital-To-Analog Converter
[5]
[4]
Discretionary Access Control
[5]
[4]
DAL
Database Abstraction Layer
[5]
[4]
DAO
Data Access Object
[5]
[4]
Data Access Objects
[5]
[4]
Disk-At-Once
[5]
[4]
DAP
Directory Access Protocol
[5]
[4]
DARPA
Defense Advanced Research Projects Agency
[5]
[4]
DAS
Direct Attached Storage
[5]
[4]
DAT
Digital Audio Tape
[5]
[4]
DB
Database
[5]
[4]
DBA
Database Administrator
[5]
[4]
DBCS
Double Byte Character Set
[5]
[4]
DBMS
Database Management System
[5]
[4]
DCC
Direct Client-to-Client
[5]
[4]
DCCA
Debian Common Core Alliance
[5]
[4]
DCCP
Datagram Congestion Control Protocol
[5]
[4]
DCL
Data Control Language
[5]
[4]
Departure Clearance via CPDLC
[7]
[6]
DCMI
Dublin Core Metadata Initiative
[5]
[4]
DCOM
Distributed Component Object Model
[5]
[4]
DCS
Distributed Control System
[5]
[4]
Disturbance Control Standard
[4]
[3]
DD
Double Density
[5]
[4]
Dangerous Detected
[4]
[3]
DDA
Depletion Depreciation amortization
[3]
[1]
DDE
Dynamic Data Exchange
[5]
[4]
DDL
Data Definition Language
[5]
[4]
DDR
Double Data Rate
[5]
[4]
DDoS
Distributed Denial of Service
[5]
[4]
DEC
Digital Equipment Corporation
[5]
[4]
DES
Data Encryption Standard
[5]
[4]
DFA
Deterministic Finite Automaton
[5]
[4]
DFD
Data Flow Diagram
[5]
[4]
DFS
Dynamic Frequency Selection
[2]
Depth-First Search
[5]
[4]
Distributed File System
[5]
[4]
DFTBA
Don't forget to be awesome
[6]
[5]
DFTT
Don't feed the trolls
[6]
[5]
DGAF
Don't give a fuck
[6]
[5]
DGD
Dworkin's Game Driver
[5]
[4]
DHCP
Dynamic Host Configuration Protocol
[5]
[4]
DHTML
Dynamic Hypertext Markup Language
[5]
[4]
DI
Dispatch information
[3]
[1]
DIAF
Die in a fire
[6]
[5]
DIF
Data Integrity Field
[5]
[4]
DIFOT
Delivery in full on time, a variant of On Time In Full
[3]
[1]
DILLIGAF/D/S
Does it look like I give a flip / fuck / damn / shit
[6]
[5]
DIMM
Dual Inline Memory Module
[5]
[4]
DIN
Deutsches Institut für Normung
[5]
[4]
DIP
Dual In-line Package
[5]
[4]
DISM
Deployment Image and Service Management Tool
[5]
[4]
DIVX
Digital Video Express
[5]
[4]
DKIM
Domain Keys Identified Mail
[5]
[4]
DL
Download
[5]
[4]
DLL
Dynamic Link Library
[5]
[4]
DLNA
Digital Living Network Alliance
[5]
[4]
DMA
Direct market access
[3]
[1]
Direct Memory Access
[5]
[4]
DMCA
Digital Millennium Copyright Act
[5]
[4]
DMI
Direct Media Interface
[5]
[4]
deferred maintenance item
[7]
[6]
DML
Data Manipulation Language
[5]
[4]
Definitive Media Library
[5]
[4]
DMR
Dennis M. Ritchie
[5]
[4]
DMZ
Demilitarized Zone
[5]
[4]
DN
Distinguished Name
[5]
[4]
DND
Drag-and-Drop
[5]
[4]
Do not disturb
[6]
[5]
DNS
Domain Name Server
[2]
Domain Name System
[5]
[4]
DOA
Dead on Arrival
[5]
[4]
Dead on arrival. Refers to hardware that is broken on delivery.
[6]
[5]
design organization approval
EASA
[7]
[6]
DOCSIS
Data Over Cable Service Interface Specification
[5]
[4]
DOE
Depending on Experience
[3]
[1]
United States Department of Energy (government)
[4]
[3]
DOM
Document Object Model
[5]
[4]
design organization manual
[7]
[6]
DORA
Discover, Offer, Request, Acknowledge
[5]
[4]
DOS
Disk Operating System
[5]
[4]
DP
Dot Pitch
[5]
[4]
Departure Procedures
[7]
[6]
Distribution point
[4]
[3]
DPC
Deferred Procedure Call
[5]
[4]
DPI
Deep packet inspection
[5]
[4]
Dots per inch
[5]
[4]
Differential Pressure Indicator
[4]
[3]
DPMI
DOS Protected Mode Interface
[5]
[4]
DPMS
Display Power Management Signaling
[5]
[4]
DPO
Days Payable Outstanding
[3]
[1]
DR
Depositary receipt
[3]
[1]
Disaster Recovery
[5]
[4]
dead reckoning
[7]
[6]
Demand response
[4]
[3]
DR-DOS
Digital Research – Disk Operating System
[5]
[4]
DRAM
Dynamic Random-Access Memory
[5]
[4]
Demand Response and Advanced Metering Coalition
[4]
[3]
DRI
Direct Rendering Infrastructure
[5]
[4]
DRM
Digital rights management
[5]
[4]
Direct rendering manager
[5]
[4]
DSA
Digital Signature Algorithm
[5]
[4]
DSDL
Document Schema Definition Languages
[5]
[4]
DSDM
Dynamic Systems Development Method
[5]
[4]
DSKT
Desktop
[5]
[4]
DSL
Digital Subscriber Line
[5]
[4]
Domain-Specific Language
[5]
[4]
DSLAM
Digital Subscriber Line Access Multiplexer
[5]
[4]
DSN
Database Source Name
[5]
[4]
Data Set Name
[5]
[4]
DSO
Days Sales Outstanding
[3]
[1]
Distribution system operator (regarding electricity distribution)
[4]
[3]
DSP
Delivery service provider
[3]
[1]
Digital Signal Processor
[5]
[4]
Digital signal processing
[7]
[6]
DSSSL
Document Style Semantics and Specification Language
[5]
[4]
DTD
Document Type Definition
[5]
[4]
DTE
Data Terminal Equipment or data transfer rate
[5]
[4]
DTO
Data Transfer Object
[5]
[4]
declared training organisation
[7]
[6]
DTP
Desktop Publishing
[3]
[5]
[1]
[4]
DTR
Data Terminal Ready or Data transfer rate
[5]
[4]
DVB-T
Digital Video Broadcast - Terrestrial
[2]
DVD
Digital Versatile Disc or Digital Video Disc
[5]
[4]
DVD-R
DVD-Recordable
[5]
[4]
DVD-ROM
DVD-Read-Only Memory
[5]
[4]
DVD-RW
DVD-Rewritable
[5]
[4]
DVI
Digital Visual Interface
[5]
[4]
DVP
Delivery versus payment
[3]
[1]
DVR
Digital Video Recorder
[5]
[4]
DW
Data Warehouse
[5]
[4]
Dept.
Department
[3]
[1]
Dir
Director
[3]
[1]
DoS
Denial of Service
[5]
[4]
E-mail
Electronic mail
[5]
[4]
EAI
Enterprise Application Integration
[5]
[4]
EAP
Extensible Authentication Protocol
[5]
[4]
EAR
Effective annual rate
[3]
[1]
Estimated additional resources, as in considering reserves of uranium deposits
[4]
[3]
EAS
Exchange ActiveSync
[5]
[4]
equivalent airspeed[1]
[7]
[6]
EAY
Effective Annual Yield
[3]
[1]
EBCDIC
Extended Binary Coded Decimal Interchange Code
[5]
[4]
EBITA
Earnings before interest and taxes and amortization
[3]
[1]
EBITDA
Earnings before Interest, Taxes, Depreciation, and Amortization
[3]
[1]
EBML
Extensible Binary Meta Language
[5]
[4]
ECB
European Central Bank
[3]
[1]
ECC
Error-correcting code memory
[2]
Elliptic Curve Cryptography
[5]
[4]
ECGC
Export Credit Guarantee Corporation of India
[3]
[1]
ECMA
European Computer Manufacturers Association
[5]
[4]
ECN
Explicit Congestion Notification
[5]
[4]
ECOS
Embedded Configurable Operating System
[5]
[4]
ECRS
Expense and Cost Recovery System
[5]
[4]
ECS
Electronic Clearing Service or Electronic Clearing System
[3]
[1]
Entity-Component-System
[5]
[4]
Environmental control system
[7]
[6]
EDA
Electronic Design Automation
[5]
[4]
EDGE
Enhanced Data Rates for GSM Evolution
[2]
Enhanced Data rates for GSM Evolution
[5]
[4]
EDI
Electronic Data Interchange
[3]
[5]
[1]
[4]
EDO
Extended Data Out
[5]
[4]
EDSAC
Electronic Delay Storage Automatic Calculator
[5]
[4]
EDVAC
Electronic Discrete Variable Automatic Computer
[5]
[4]
EEPROM
Electronically Erasable Programmable Read-Only Memory
[5]
[4]
EFF
Electronic Frontier Foundation
[5]
[4]
EFI
Extensible Firmware Interface
[5]
[4]
EFM
Eight-to-Fourteen Modulation
[5]
[4]
Ethernet in the First Mile
[5]
[4]
EFS
Encrypting File System
[5]
[4]
elevator feel shift
[7]
[6]
EFSM
European Financial Stabilisation Mechanism
[3]
[1]
EFTPOS
Electronic Funds Transfer at Point of Sale
[3]
[1]
EGA
Enhanced Graphics Array
[5]
[4]
EGP
Exterior Gateway Protocol
[5]
[4]
EIDE
Enhanced IDE
[5]
[4]
EIDL
Economic Injury Disaster Loan
[3]
[1]
EIGRP
Enhanced Interior Gateway Routing Protocol
[5]
[4]
EISA
Extended Industry Standard Architecture
[5]
[4]
ELF
Extremely Low Frequency
[5]
[4]
Executable and Linkable Format
[5]
[4]
ELI5
Explain like I'm Five
[6]
[5]
ELM
ELectronic Mail
[5]
[4]
EMACS
Editor MACroS
[5]
[4]
EMI
Equated Monthly Installment
[3]
[1]
EMS
Expanded Memory Specification
[5]
[4]
ENIAC
Electronic Numerical Integrator And Computer
[5]
[4]
EOB
End of business
[3]
[1]
EOD
End of day
[3]
[1]
EOF
End of File
[5]
[4]
EOL
End of Life
[5]
[4]
End of Line
[5]
[4]
EOM
End of Message
[3]
[5]
[1]
[4]
EOS
End of Support
[5]
[4]
EPC
Export Promotion Council
[3]
[1]
EPIC
Explicitly Parallel Instruction Computing
[5]
[4]
EPROM
Erasable Programmable Read-Only Memory
[5]
[4]
EPS
Earnings per share
[3]
[1]
ERD
Entity–Relationship Diagram
[5]
[4]
ERM
Entity–Relationship Model
[5]
[4]
engineering request for maintenance
[7]
[6]
ERP
Enterprise Resource Planning
[3]
[5]
[1]
[2]
[4]
ESAD
eat shit and die
[6]
[5]
ESB
Enterprise service bus
[5]
[4]
ESCON
Enterprise Systems Connection
[5]
[4]
ESD
Electrostatic Discharge
[5]
[4]
ESI
Electronically Stored Information
[5]
[4]
Environmental Sustainability Index
[4]
[3]
ESR
Eric Steven Raymond
[5]
[4]
ETA
Estimated Time of Arrival
[3]
[5]
[1]
[4]
estimated time of arrival
[7]
[6]
ETD
Estimated Time of Departure or Estimated Time of Delivery
[3]
[1]
estimated time of departure[1]
[7]
[6]
ETL
Extract, Transform, Load
[5]
[4]
effective translational lift
[7]
[6]
ETW
Event Tracing for Windows
[5]
[4]
EUC
Extended Unix Code
[5]
[4]
Equipment Under Control
[4]
[3]
EULA
End User License Agreement
[5]
[4]
EWMH
Extended Window Manager Hints
[5]
[4]
EXP
Export
[3]
[1]
EXT
EXTended file system
[5]
[4]
EXW
Ex Works
[3]
[1]
F/U
Follow-Up
[3]
[1]
F9
Fine
[6]
[5]
FAB
Feature Advantage Benefits
[3]
[1]
FAP
FORTRAN Assembly Program
[5]
[4]
final approach point
[7]
[6]
forward attendant panel
Aircraft equipment
[7]
[6]
FAQ
Frequently Asked Questions
[5]
[4]
Frequently Asked Question(s)
[6]
[5]
FASM
Flat ASseMbler
[5]
[4]
FAT
File Allocation Table
[5]
[4]
Free air temperature
[7]
[6]
Factory Acceptance Testing
[4]
[3]
FBDIMM
Fully Buffered Dual Inline Memory Module
[5]
[4]
FC-AL
Fibre Channel Arbitrated Loop
[5]
[4]
FCB
File Control Block
[5]
[4]
FCS
Frame Check Sequence
[5]
[4]
flight control system
[7]
[6]
FDC
Floppy-Disk Controller
[5]
[4]
FDD
Frequency-Division Duplexing
[5]
[4]
Floppy Disk Drive
[5]
[4]
FDDI
Fiber Distributed Data Interface
[5]
[4]
FDM
Frequency-Division Multiplexing
[5]
[4]
flight data monitoring
Operations planning
[7]
[6]
FDMA
Frequency-Division Multiple Access
[5]
[4]
FDP
Finance Department
[3]
[1]
flight duty period
[7]
[6]
FDS
Fedora Directory Server
[5]
[4]
FE
Frontend
[5]
[4]
Final Element
[4]
[3]
FEC
Forward Error Correction
[5]
[4]
FEMB
Front-End Motherboard
[5]
[4]
FET
Field Effect Transistor
[5]
[4]
FFS
For fuck's sake
[6]
[5]
full flight simulator
Flight crew training
[7]
[6]
FHS
Filesystem Hierarchy Standard
[5]
[4]
FICON
FIber CONnectivity
[5]
[4]
FIFO
First In, First Out
[3]
[1]
First In First Out
[5]
[4]
FIPS
Federal Information Processing Standards
[5]
[4]
FIX
Financial Information Exchange
[3]
[1]
FL
Financial leverage
[3]
[1]
Function Level
[5]
[4]
flight level
ATC
[7]
[6]
FLAC
Free Lossless Audio Codec
[5]
[4]
FLOPS
FLoating-Point Operations Per Second
[5]
[4]
FLOSS
Free/Libre/Open-Source Software
[5]
[4]
FMC
Fixed Mobile Convergence "Mobile UC or Unified Communications over Wireless"
[5]
[4]
flight management computer (part of a FMS)
Avionics
[7]
[6]
FMCDH
From my cold, dead hands
[6]
[5]
FML
Fuck my life.
[6]
[5]
FNF
Full and Final
[3]
[1]
FOAD
Fuck off and die
[6]
[5]
FOAF
Friend of a friend
[6]
[5]
FOB
Freight On Board
[3]
[1]
Fuel On-Board
[7]
[6]
FOC
Free Of Cost
[3]
[1]
FOLDOC
Free On-line Dictionary of Computing
[5]
[4]
FOMC
Federal Open Market Committee
[3]
[1]
FORTRAN
Formula Translation
[5]
[4]
FOSDEM
Free and Open-source Software Developers' European Meeting
[5]
[4]
FOSI
Formatted Output Specification Instance
[5]
[4]
FOSS
Free and Open-Source Software
[5]
[4]
FP
Function Programming
[5]
[4]
Functional Programming
[5]
[4]
FP&A
Financial Planning & Analysis
[3]
[1]
FPGA
Field Programmable Gate Array
[5]
[4]
FPO
Follow-on Public Offer
[3]
[1]
FPS
Frames Per Second
[2]
Floating Point Systems
[5]
[4]
Firm peaking service. See Peaking power plant
[4]
[3]
FPU
Floating-Point Unit
[5]
[4]
FQDN
Fully Qualified Domain Name
[5]
[4]
FRU
Field-Replaceable Unit
[5]
[4]
FS
File System
[5]
[4]
Fuselage station
[7]
[6]
Functional Safety
[4]
[3]
FSA
Financial Services Authority
[3]
[1]
Functional Safety Assessment
[4]
[3]
FSB
Front-Side Bus
[5]
[4]
FSF
Free Software Foundation
[5]
[4]
Flight Safety Foundation
U.S.-based nonprofit organisation
[7]
[6]
FSM
Finite State Machine
[5]
[4]
Functional Safety Management
[4]
[3]
FTE
Full-Time Equivalent
[3]
[1]
FTFY
Fixed that for you
[6]
[5]
FTL
For the loss
[6]
[5]
flight time limitations
[7]
[6]
FTP
File Transfer Protocol
[5]
[2]
[4]
FTR
For the record
[6]
[5]
Firm Transmission Rights
—Financial Transmission Rights. See explanation in electricity markets.
[4]
[3]
FTTC
Fiber To The Curb
[5]
[4]
FTTH
Fiber To The Home
[5]
[4]
FTTP
Fiber To The Premises
[5]
[4]
FTW
For the win
[6]
[5]
FTW?
Can be construed as "Fuck the what?" (reversal of WTF?, implies increased confusion)
[6]
[5]
FU
Fuck you
[6]
[5]
FUBAR
Fucked up beyond all recognition / repair (from military slang; pronounced "foo-bar")
[6]
[5]
FUD
Fear Uncertainty Doubt
[5]
[4]
Fear, Uncertainty and Doubt (the purposeful spread of misinformation)
[6]
[5]
FUP
Fair User Policy
[2]
FV
Future Value
[3]
[1]
FWIW
For what it's worth
[6]
[5]
FWS
Folding White Space
[5]
[4]
Flight warning system
[7]
[6]
FX
Foreign exchange market
[3]
[1]
FXP
File eXchange Protocol
[5]
[4]
FY
Fiscal year or Financial year
[3]
[1]
FYA
For Your Action
[3]
[1]
FYF
Full Year Forecast
[3]
[1]
FYI
For Your Information
[3]
[5]
[1]
[4]
For your information
[6]
[5]
Fin Min
Finance Minister
[3]
[1]
FinMin
Finance Minister
[3]
[1]
G&A
General and Administration expense. expenditures related to the day-to-day operations of a business.
[3]
[1]
G11N
Globalization
[5]
[4]
GAAP
Generally Accepted Accounting Principles
[3]
[1]
GAAS
Generally Accepted Audit Standards
[3]
[1]
GB
Gigabyte
[5]
[4]
GBTW
Get back to work
[6]
[5]
GCC
GNU Compiler Collection
[5]
[4]
GCJ
GNU Compiler for Java
[5]
[4]
GCP
Google Cloud Platform
[5]
[4]
GCR
Group Coded Recording
[5]
[4]
GDB
GNU Debugger
[5]
[4]
GDI
Graphics Device Interface
[5]
[4]
GDP
Gross Domestic Product
[3]
[1]
gross domestic product (economics)
[4]
[3]
GDPR
General Data Protection Regulation
[3]
[1]
GDR
Global depository receipt
[3]
[1]
GERAN
GSM EDGE Radio Access Network
[5]
[4]
GF
Girlfriend
[6]
[5]
GFCF
Gross fixed capital formation
[3]
[1]
GFDL
GNU Free Documentation License
[5]
[4]
GFU
Good for you
[6]
[5]
GFY
Go fuck yourself
[6]
[5]
GG
Good game, used at or near the conclusion of a gaming match
[6]
[5]
GGS
Good games
[6]
[5]
Global positioning system ground station
[7]
[6]
GIF
Graphics Interchange Format
[5]
[4]
GIGO
Garbage In, Garbage Out
[5]
[4]
GIMP
GNU Image Manipulation Program
[5]
[4]
GIMPS
Great Internet Mersenne Prime Search
[5]
[4]
GIS
Geographic Information System
[5]
[4]
GIYF
Google is your friend: a suggestion that somebody could find something out using an Internet search engine, rather than asking others.
[6]
[5]
GJ
Good job, often used in online gaming when a teammate performs an act benefitting his team, such as killing an opponent or enabling that kill
[6]
[5]
GL
General Ledger
[3]
[1]
Good luck, used before commencing a game
[6]
[5]
GLUT
OpenGL Utility Toolkit
[5]
[4]
GM
Game Master
[2]
guidance material (EASA)
[7]
[6]
GML
Geography Markup Language
[5]
[4]
GMROII
Gross Margin Return on Inventory Investment
[3]
[1]
GMTA
Great minds think alike
[6]
[5]
GMV
Gross Merchandise Volume
[3]
[1]
GNOME
GNU Network Object Model Environment
[5]
[4]
GNU
GNU's Not Unix
[5]
[4]
GOMS
Goals, Operators, Methods, and Selection rules
[5]
[4]
GP
Gross Profit
[3]
[1]
glide path
See instrument landing system
[7]
[6]
GPASM
GNU PIC ASseMbler
[5]
[4]
GPFS
General Parallel File System
[5]
[4]
GPG
GNU Privacy Guard
[5]
[4]
GPGPU
General-Purpose Computing on Graphics Processing Units
[5]
[4]
GPIB
General-Purpose Instrumentation Bus
[5]
[4]
GPL
General Public License
[5]
[4]
General-Purpose Language
[5]
[4]
GPO
Group purchasing organization
[3]
[1]
GPRS
General Packet Radio Service
[5]
[4]
Gas Pressure Reduction System
[4]
[3]
GPS
Global Positioning System
[2]
Global Positioning System
Avionics
[7]
[6]
GPT
GUID Partition Table
[5]
[4]
GPU
Graphics Processing Unit
[5]
[4]
Ground Power Unit
Aerospace Ground Equipment
[7]
[6]
GR
Good Race, Good Round
[6]
[5]
GR8
Great
[6]
[5]
GRN
Goods Receipt Note
[3]
[1]
GRNI
Goods Receipt Not Invoiced
[3]
[1]
GRUB
Grand Unified Boot-Loader
[5]
[4]
GSM
Global System for Mobile Communications
[5]
[4]
GSV
Gross Sales Value
[3]
[1]
GTFO
Get the fuck out
[6]
[5]
GTG or G2G
'Got to go' or 'Good to go'
[6]
[5]
GTK/GTK+
GIMP Toolkit[1]
[5]
[4]
GUI
Graphical user interface
[5]
[4]
GUID
Globally Unique IDentifier
[5]
[4]
GVC
Global value chain
[3]
[1]
GWT
Google Web Toolkit
[5]
[4]
Gas
GNU Assembler
[5]
[4]
Gb
Gigabit
[5]
[4]
Gbps
Gigabits per second
[5]
[4]
Godwin's law
Dictates that the longer a thread, the more likely someone will post a comparison involving Nazis or Hitler
[6]
[5]
HA
High availability
[5]
[4]
HAL
Hardware Abstraction Layer
[5]
[4]
HAND
have a nice day
[6]
[5]
HASP
Houston Automatic Spooling Priority
[5]
[4]
HBA
Host Bus Adapter
[5]
[4]
HBU
how (a)bout you?
[6]
[5]
HCI
Human—Computer Interaction
[5]
[4]
HCL
Hardware Compatibility List
[5]
[4]
HD
High Definition,Half Duplex
[2]
High Density
[5]
[4]
HD DVD
High Definition DVD
[5]
[4]
HDD
Hard Disk Drive
[5]
[4]
Heating degree days a qualitative index used to reflect the demand for energy to heat a business (conservation)
[4]
[3]
heating degree day
[4]
[3]
HDL
Hardware Description Language
[5]
[4]
HDMI
High-Definition Multimedia Interface
[5]
[4]
HECI
Host Embedded Controller Interface
[5]
[4]
HF
Hedge fund
[3]
[1]
High Frequency
[5]
[4]
Have fun
[6]
[5]
High frequency
[7]
[6]
HFS
Hierarchical File System
[5]
[4]
HHD
Hybrid Hard Drive
[5]
[4]
HID
Human Interface Device
[5]
[4]
high intensity discharge (electricity)
[4]
[3]
high-intensity discharge
[4]
[3]
HIG
Human Interface Guidelines
[5]
[4]
HIRD
Hurd of Interfaces Representing Depth
[5]
[4]
HLASM
High Level ASseMbler
[5]
[4]
HLS
HTTP Live Streaming
[5]
[4]
HMA
High Memory Area
[5]
[4]
HMRC
Her Majesty's Revenue and Customs
[3]
[1]
HP
Hire purchase
[3]
[1]
Hewlett-Packard
[5]
[4]
HPC
High-Performance Computing
[5]
[4]
high pressure compressor
In turbine engine
[7]
[6]
HPFS
High Performance File System
[5]
[4]
HQ
Headquarters
[3]
[1]
HR
Human Resources
[3]
[1]
HRD
Human Resource Development
[3]
[1]
HS Code
Harmonized Commodity Description and Coding System
[3]
[1]
HSDPA
High-Speed Downlink Packet Access
[5]
[2]
[4]
HSM
Hierarchical Storage Management
[5]
[4]
HT
Hyper Threading
[5]
[4]
HTC
High-Throughput Computing
[5]
[4]
HTH
Hope this / that helps
[6]
[5]
HTM
Hierarchical Temporal Memory
[5]
[4]
HTML
HyperText Markup Language
[2]
Hypertext Markup Language
[5]
[4]
HTTP
Hypertext Transport Protocol
[2]
Hypertext Transfer Protocol
[5]
[4]
HTTPS
HTTP Secure
[5]
[4]
HTTPd
Hypertext Transport Protocol Daemon
[5]
[4]
HTX
HyperTransport eXpansion
[5]
[4]
HURD
Hird of Unix-Replacing Daemons
[5]
[4]
HVD
Holographic Versatile Disc
[5]
[4]
Hz
Hertz
[5]
[4]
Hertz
Symbol for unit of frequency
[7]
[6]
I/O
Input/output
[5]
[4]
I18N
Internationalization
[5]
[4]
IANA
Internet Assigned Numbers Authority
[5]
[4]
IANAL
I am not a lawyer
[6]
[5]
IAS
International Accounting Standards
[3]
[1]
indicated airspeed
[7]
[6]
IB
Investment banking
[3]
[1]
inboard
[7]
[6]
IBAN
International Bank Account Number
[3]
[1]
IBM
International Business Machines
[5]
[4]
IBTL
In before the lock
[6]
[5]
IC
Integrated Circuit
[5]
[4]
ICANN
Internet Corporation for Assigned Names and Numbers
[5]
[4]
ICB
Industry Classification Benchmark
[3]
[1]
ICE
In-Circuit Emulator
[5]
[4]
Intrusion Countermeasure Electronics
[5]
[4]
Internal combustion engine (transportation)
[4]
[3]
ICH
I/O Controller Hub
[5]
[4]
ICMP
Internet Control Message Protocol
[5]
[4]
ICP
Internet Cache Protocol
[5]
[4]
ICRM
Innovative Customer Relationship Management
[3]
[1]
ICS
Internet Connection Sharing
[5]
[4]
ICT
Information and Communication Technology
[5]
[4]
Independent Coordinator of Transmission (US) (electricity)
—Information and Communication Technology
[4]
[3]
IDE
Integrated Development Environment
[5]
[4]
Integrated Drive Electronics
[5]
[4]
IDF
Intermediate Distribution Frame
[5]
[4]
Intermediate Data Format
[5]
[4]
IDGAF
I don't give a fuck
[6]
[5]
IDK
I don't know
[6]
[5]
IDL
Interactive Data Language
[5]
[4]
Interface Definition Language
[5]
[4]
IDS
Intrusion Detection System
[5]
[4]
information display system
Or: integrated display system
[7]
[6]
IE
Interest expense
[3]
[1]
Internet Explorer
[5]
[4]
IEC
International Electrotechnical Commission
[5]
[4]
[4]
[3]
IEEE
Institute of Electrical and Electronics Engineers
[5]
[4]
[4]
[3]
IETF
Internet Engineering Task Force
[5]
[4]
IFL
Integrated Facility for Linux
[5]
[4]
IFRS
International Financial Reporting Standard
[3]
[1]
IG
I guess
[6]
[5]
IGMP
Internet Group Management Protocol
[5]
[4]
IGRP
Interior Gateway Routing Protocol
[5]
[4]
IHT
I had to
[6]
[5]
IHV
Independent Hardware Vendor
[5]
[4]
IIOP
Internet Inter-Orb Protocol
[5]
[4]
IIRC
If I recall / remember correctly
[6]
[5]
IIS
Internet Information Services
[5]
[4]
IIUC
If I understand correctly
[6]
[5]
IKE
Internet Key Exchange
[5]
[4]
IL
Intermediate Language
[5]
[4]
ILCLP
IdentLogic Systems Customer Loyalty Program
[3]
[1]
ILY
I love you
[6]
[5]
IM
Instant Message or Instant Messaging
[5]
[4]
IMAO
In my arrogant opinion
[6]
[5]
IMAP
Internet Message Access Protocol
[5]
[4]
IME
Input Method Editor
[5]
[4]
IMF
International Monetary Fund
[3]
[1]
IMHO
In my humble / honest opinion
[6]
[5]
IMNSHO
In my not so humble opinion
[6]
[5]
IMO
In my opinion
[6]
[5]
IMP
Import
[3]
[1]
INFOSEC
Information Systems Security
[5]
[4]
IOW
In other words
[6]
[5]
IP
Internet Protocol
[5]
[2]
[4]
Intellectual Property
[5]
[4]
IPAM
IP Address Management
[5]
[4]
IPC
Inter-Process Communication
[5]
[4]
illustrated parts catalog (e.g. by Boeing, Airbus)
[7]
[6]
IPL
Initial Program Load
[5]
[4]
IPMI
Intelligent Platform Management Interface
[5]
[4]
IPO
Initial public offering
[3]
[1]
Inter Procedural Optimization
[5]
[4]
IPP
Internet Printing Protocol
[5]
[4]
Independent Power Producer (electricity)
[4]
[3]
IPS
In-Plane Switching
[5]
[4]
Instructions Per Second
[5]
[4]
Intrusion Prevention System
[5]
[4]
IPT
Item Per Transaction
[3]
[1]
IPTV
Internet Protocol Television
[5]
[2]
[4]
IPX
Internetwork Packet Exchange
[5]
[4]
IPsec
Internet Protocol security
[5]
[4]
IPv4
Internet Protocol version 4
[5]
[4]
IPv6
Internet Protocol version 6
[5]
[4]
IR
Interest rate – typically referring to an IR derivative product
[3]
[1]
Intermediate Representation
[5]
[4]
initial release
[7]
[6]
IRC
Internet Relay Chat
[5]
[6]
[2]
[4]
[5]
ISO / RTO Council (electricity)
[4]
[3]
IRI
Internationalized Resource Identifier
[5]
[4]
IRL
In real life
[6]
[5]
IRP
I/O Request Packet
[5]
[4]
Integrated resource planning
[4]
[3]
IRQ
Interrupt Request
[5]
[4]
IRR
Internal Rate of Return
[3]
[1]
Internal Rate of Return (finance)
[4]
[3]
IRS
Internal Revenue Service
[3]
[1]
inertial reference system
[7]
[6]
IS
Information Systems
[5]
[4]
IS-IS
Intermediate System to Intermediate System
[5]
[4]
ISA
Industry Standard Architecture
[5]
[4]
Instruction Set Architecture
[5]
[4]
International Standard Atmosphere
[7]
[6]
ISAM
Indexed Sequential Access Method
[5]
[4]
ISATAP
Intra-Site Automatic Tunnel Addressing Protocol
[5]
[4]
ISC
Internet Storm Center
[5]
[4]
ISDN
Integrated Services Digital Network
[5]
[4]
ISIN
International Securities Identification Number
[3]
[1]
ISM
Institute for Supply Management
[3]
[1]
ISO
International Organization for Standardization
[5]
[4]
Independent System Operator (US) (see also TSO) Responsible for grid management, but does not own assets. (electricity)
[4]
[3]
NE ISO New England, Inc. (electricity)
[4]
[3]
ISP
Internet Service Provider
[5]
[2]
[4]
integrated switching panel
[7]
[6]
ISPF
Interactive System Productivity Facility
[5]
[4]
ISR
Interrupt Service Routine
[5]
[4]
ISTM
It seems to me
[6]
[5]
ISV
Independent Software Vendor
[5]
[4]
IT
Information Technology
[5]
[4]
Interruptible Transportation is gas shipment via pipeline whose delivery may be interrupted in favor of "firm shipment" contracts if there is lack of capacity. (natural gas)
[4]
[3]
ITIL
Information Technology Infrastructure Library
[5]
[4]
ITL
Interval Temporal Logic
[5]
[4]
ITT
Invitation to tender
[3]
[1]
interstage turbine temperature
[7]
[6]
ITU
International Telecommunication Union
[5]
[4]
ITYM
I Think You Mean
[6]
[5]
IVR(S)
Interactive Voice Response (System)
[5]
[4]
IWSN
I want sex now
[6]
[5]
IYDMMA
If you don't mind my asking
[6]
[5]
IYKWIM
If you know what I mean
[6]
[5]
IYR
In Year Revenue
[3]
[1]
IaC
Infrastructure as Code
[5]
[4]
IaaS
Infrastructure as a Service
[5]
[4]
IdP
Identity Provider (cybersecurity)
[5]
[4]
Inc.
Incorporated
[3]
[1]
IoT
Internet of Things
[3]
[5]
[1]
[4]
IrDA
Infrared Data Association
[5]
[4]
I²C
Inter-Integrated Circuit
[5]
[4]
I²S
Integrated Interchip Sound
[5]
[4]
J
Journal
[3]
[1]
J2EE
Java 2 Enterprise Edition
[5]
[4]
J2ME
Java 2 Micro Edition
[5]
[4]
J2SE
Java 2 Standard Edition
[5]
[4]
JAS
Just a sec
[6]
[5]
JAX-RPC
Jakarta XML (formerly Java XML) for Remote Procedure Calls
[5]
[4]
JAXB
Java Architecture for XML Binding
[5]
[4]
JAXP
Java API for XML Processing
[5]
[4]
JBOD
Just a Bunch of Disks
[5]
[4]
JCE
Java Cryptography Extension
[5]
[4]
JCL
Job Control Language
[5]
[4]
JCP
Java Community Process
[5]
[4]
JDBC
Java Database Connectivity
[5]
[4]
JDK
Java Development Kit
[5]
[4]
JDS
Java Desktop System
[5]
[4]
JEE
Java Enterprise Edition
[5]
[4]
JES
Job Entry Subsystem
[5]
[4]
JFC
Java Foundation Classes
[5]
[4]
JFET
Junction Field-Effect Transistor
[5]
[4]
JFGI
just fu..ing google it!
[6]
[5]
JFS
IBM Journaling File System
[5]
[4]
JFTR
Just for the record
[6]
[5]
JINI
Jini Is Not Initials
[5]
[4]
JIS
Just in sequence
[3]
[1]
JIT
Just in time
[3]
[1]
Just-In-Time
[5]
[4]
JK or j/k
Just kidding, or joke;
[6]
[5]
JME
Java Micro Edition
[5]
[4]
JMS
Java Message Service
[5]
[4]
JMX
Java Management Extensions
[5]
[4]
JNDI
Java Naming and Directory Interface
[5]
[4]
JNI
Java Native Interface
[5]
[4]
JNZ
Jump non-zero
[5]
[4]
JPEG
Joint Photographic Experts Group
[5]
[4]
JRE
Java Runtime Environment
[5]
[4]
JS
JavaScript
[5]
[4]
JSE
Java Standard Edition
[5]
[4]
JSON
JavaScript Object Notation
[5]
[2]
[4]
JSP
Jackson Structured Programming
[5]
[4]
JavaServer Pages
[5]
[4]
JST
Joint Supervisory Team
[3]
[1]
JTAG
Joint Test Action Group
[5]
[4]
JTLYK
Just to let you know
[6]
[5]
JV
Joint Venture
[3]
[1]
JVM
Java Virtual Machine
[5]
[4]
K
Is used as an abbreviation for 1,000. For example, $225K would be understood to mean $225,000, and $3.6K would be understood to mean $3,600. Multiple K's are not commonly used to represent larger numbers. In other words, it would look odd to use $1.2KK to represent $1,200,000.
[3]
[1]
K&R
Kernighan and Ritchie
[5]
[4]
K8s
Kubernetes
[5]
[4]
KB
Keyboard
[5]
[4]
Kilobyte
[5]
[4]
Knowledge Base
[5]
[4]
KDE
K Desktop Environment
[5]
[4]
KISS
Keep it simple stupid
[6]
[5]
KOS
Kill on sight
[6]
[5]
KPI
Key Performance Indicator, a type of performance measurement. An organization may use KPIs to evaluate its success, or to evaluate the success of a particular activity in which it is engaged.
[3]
[1]
Key Performance Indicator
[4]
[3]
KRL
Knowledge Representation Language
[5]
[4]
KTHX
OK, thanks
[6]
[5]
KVM
Keyboard Video Mouse
[2]
Keyboard, Video, Mouse
[5]
[4]
KYC
"Know Your Customer" refers to due diligence activities that financial institutions and other regulated companies must perform to ascertain relevant information.
[3]
[1]
KYS
kill yourself
[6]
[5]
Kb
Kilobit
[5]
[4]
Kbps
Kilobits per second
[5]
[4]
Ke –
Karachi Interbank Offered Rate
[3]
[1]
KiB
Kibibyte
[5]
[4]
L10N
Localization
[5]
[4]
L2TP
Layer two Tunneling Protocol
[5]
[4]
LACP
Link Aggregation Control Protocol
[5]
[4]
LAMP
Linux Apache MySQL Perl
[5]
[4]
Linux Apache MySQL PHP
[5]
[4]
Linux Apache MySQL Python
[5]
[4]
LAN
Local Area Network
[5]
[4]
LB
Load Balancer
[5]
[4]
LBA
Logical Block Addressing
[5]
[4]
Local Balancing Authority (electricity)
[4]
[3]
LBO
Leveraged Buyout
[3]
[1]
LC
Letter of credit
[3]
[1]
LCD
Liquid Crystal Display
[5]
[4]
liquid crystal display
[7]
[6]
LCOS
Liquid Crystal On Silicon
[5]
[4]
Levelized cost of storage (electricity)
[4]
[3]
LCR
Least Cost Routing
[5]
[4]
LDAP
Lightweight Directory Access Protocol
[5]
[4]
LE
Latest Estimate
[3]
[4]
[1]
[3]
Logical Extents
[5]
[4]
LED
Light-Emitting Diode
[5]
[4]
light-emitting diode
[7]
[6]
Light Emitting Diode
[4]
[3]
LF
Line Feed
[5]
[4]
Low Frequency
[5]
[4]
LFG
Looking for group
[6]
[5]
LFM
Looking for more
[6]
[5]
LFS
Linux From Scratch
[5]
[4]
LGA
Land Grid Array
[5]
[4]
LGPL
Lesser General Public License
[5]
[4]
LIB
LIBrary
[5]
[4]
LIBOR
London Interbank Offered Rate
[3]
[1]
LIF
Low Insertion Force
[5]
[4]
LIFFE
Last In, First Out
[3]
[1]
LIFO
Last In First Out
[5]
[4]
LILO
Linux Loader
[5]
[4]
LIP
Loop Initialization Primitive
[5]
[4]
LISP
LISt Processing
[5]
[4]
LKML
Linux Kernel Mailing List
[5]
[4]
LLC
Limited Liability Company
[3]
[1]
Life Limited Component
[7]
[6]
LM
Lan Manager
[5]
[4]
land and marine
[7]
[6]
LMAO
Laughing my ass off
[6]
[5]
LMBO
Laughing my butt off
[6]
[5]
LME
Limited Company
[3]
[1]
LMFAO
Laughing my fucking ass off
[6]
[5]
LMGTFY
Let me Google that for you
[6]
[5]
LMIRL
Let's meet in real life.
[6]
[5]
LMK
Let me know
[6]
[5]
LOC
Lines of Credit
[3]
[1]
Lines of Code
[5]
[4]
localizer
[7]
[6]
loss of control
[7]
[6]
LOI
Letter of intent
[3]
[1]
LOL
Laughing out loud, laugh out loud
[6]
[5]
LPC
Lars Pensjö C
[5]
[4]
low pressure compressor
In turbine engines
[7]
[6]
LPI
Linux Professional Institute
[5]
[4]
LPT
Line Print Terminal
[5]
[4]
low pressure turbine
[7]
[6]
LRU
Least Recently Used
[5]
[4]
line-replaceable unit
[7]
[6]
LSB
Least Significant Bit
[5]
[4]
Linux Standard Base
[5]
[4]
LSI
Large-Scale Integration
[5]
[4]
LTE
Long Term Evolution
[5]
[4]
Loss of Tail Rotor Effectiveness
Helicopters
[7]
[6]
LTL
Linear Temporal Logic
[5]
[4]
LTNS
Long time no see
[6]
[5]
LTR
Left-to-Right
[5]
[4]
LTV
Loan to Value
[3]
[1]
LUG
Linux User Group
[5]
[4]
LUN
Logical Unit Number
[5]
[4]
LV
Logical Volume
[5]
[4]
LVD
Low Voltage Differential
[5]
[4]
LVM
Logical Volume Management
[5]
[4]
LXC
LinuX Containers
[2]
LY
Last Year
[3]
[1]
LYLAB
Love you like a brother.
[6]
[5]
LYLAS
Love you like a sister.
[6]
[5]
LZW
Lempel-Ziv-Welch
[5]
[4]
LoU
Letters of Undertaking
[3]
[1]
M8
Mate
[6]
[5]
MAC
Media Access Control address
[2]
Mandatory Access Control
[5]
[4]
Media Access Control
[5]
[4]
Message authentication code
[5]
[4]
mean aerodynamic chord
[7]
[6]
mid-air collision
[7]
[6]
MAN
Metropolitan Area Network
[5]
[4]
MANET
Mobile Ad-Hoc Network
[5]
[4]
MAPI
Messaging Application Programming Interface
[5]
[4]
MB
Megabyte
[5]
[4]
Marker beacon
[7]
[6]
MBCS
Multi Byte Character Set
[5]
[4]
MBD
Model-Based Design
[5]
[4]
million barrels per day
[4]
[3]
MBR
Master Boot Record
[5]
[4]
Market based Rates
[4]
[3]
MBS
Manufacturing
[3]
[1]
Macro economic Budget Support
[4]
[3]
MCA
Micro Channel Architecture
[5]
[4]
Microsoft Certified Architect
[5]
[4]
MCAD
Microsoft Certified Application Developer
[5]
[4]
MCAS
Microsoft Certified Application Specialist
[5]
[4]
Maneuvering Characteristics Augmentation System
Held responsible for Boeing 737 MAX groundings
[7]
[6]
MCDBA
Microsoft Certified DataBase Administrator
[5]
[4]
MCDST
Microsoft Certified Desktop Support Technician
[5]
[4]
MCITP
Microsoft Certified Information Technology Professional
[5]
[4]
MCM
Microsoft Certified Master
[5]
[4]
MCP
Microsoft Certified Professional
[5]
[4]
mode control panel
[7]
[6]
MCPD
Microsoft Certified Professional Developer
[5]
[4]
MCSA
Microsoft Certified Systems Administrator
[5]
[4]
MCSD
Microsoft Certified Solution Developer
[5]
[4]
MCSE
Microsoft Certified Systems Engineer
[5]
[4]
MCT
Microsoft Certified Trainer
[5]
[4]
maximum continuous thrust
[7]
[6]
MCTS
Microsoft Certified Technology Specialist
[5]
[4]
MDA
Monochrome Display Adapter
[5]
[4]
Mail Delivery Agent
[5]
[4]
Model-Driven Architecture
[5]
[4]
minimum descent altitude
Or: minimum decision altitude. Non-precision approach.
[7]
[6]
MDD/MDSD
Model-Driven (Software) Development
[5]
[4]
MDF
Main Distribution Frame
[5]
[4]
MDI
Multiple-Document Interface
[5]
[4]
MDM
Master Data Management
[5]
[4]
multi-disciplinary measure
EASA
[7]
[6]
Meter Data Management
[4]
[3]
ME
Microsoft Edge
[5]
[4]
[Windows] Millennium Edition
[5]
[4]
Manufacturing Engineer
[7]
[6]
MF
Medium Frequency
[5]
[4]
Medium frequency
[7]
[6]
MFA
Multi-factor authentication
[5]
[4]
MFC
Microsoft Foundation Classes
[5]
[4]
MFM
Modified Frequency Modulation
[5]
[4]
MFT
Master File Table
[5]
[4]
MFW
My face when (usually accompanied by an image)
[6]
[5]
MGCP
Media Gateway Control Protocol
[5]
[4]
MGMT
Management
[3]
[1]
MHz
Megahertz
[5]
[4]
MIB
Management Information Base
[5]
[4]
MIC
Market Identifier Code
[3]
[1]
Microphone
[7]
[6]
MICR
Magnetic Ink Character Recognition or Magnetic Ink Character Reader
[5]
[4]
MIDI
Musical Instrument Digital Interface
[5]
[4]
MILE
Maximum impact, little effort [10]
[3]
[1]
MIMD
Multiple Instruction, Multiple Data
[5]
[4]
MIME
Multipurpose Internet Mail Extensions
[5]
[4]
MIMO
Multiple-Input Multiple-Output
[5]
[4]
MINIX
MIni-uNIX
[5]
[4]
MIPS
Microprocessor without Interlocked Pipeline Stages
[5]
[4]
Million Instructions Per Second
[5]
[4]
MIS
Management Information Systems
[5]
[4]
MISD
Multiple Instruction, Single Data
[5]
[4]
MIT
Massachusetts Institute of Technology
[5]
[4]
ML
Machine Learning
[5]
[4]
maintenance laptop
[7]
[6]
MMC
Microsoft Management Console
[5]
[4]
Market Monitoring Center
[4]
[3]
MMDS
Mortality Medical Data System
[5]
[4]
Multichannel Multipoint Distribution Service
[5]
[4]
MMF
Multi-Mode (optical) Fiber
[5]
[4]
MMI
Man Machine Interface.
[5]
[4]
MMIO
Memory-Mapped I/O
[5]
[4]
MMO
Massive Multi-player Online [game]
[6]
[5]
MMORPG
Massively Multiplayer Online Role-Playing Game
[5]
[4]
MMO + RPG (Massive Multi-player Online Role-Playing Game). The most frequent genre of MMO.
[6]
[5]
MMS
Multimedia Message Service
[5]
[4]
Minerals Management Service (US)
[4]
[3]
MMU
Memory Management Unit
[5]
[4]
MMX
Multi-Media Extensions
[5]
[4]
MNG
Multiple-image Network Graphics
[5]
[4]
MOM
Message-Oriented Middleware
[5]
[4]
MOO
MUD Object Oriented
[5]
[4]
MOP
Meta-Object Protocol
[5]
[4]
MOQ
Minimum Order Quantity
[3]
[1]
MOS
Microsoft Office Specialist
[5]
[4]
MOSFET
Metal-Oxide Semiconductor Field Effect Transistor
[5]
[4]
MOTD
Message Of The Day
[5]
[4]
Message of the day
[6]
[5]
MOU
Memorandum of understanding
[3]
[1]
Memorandum of Understanding
[4]
[3]
MOUS
Microsoft Office User Specialist
[5]
[4]
MOV
Apple QuickTime Multimedia File
[5]
[4]
MPAA
Motion Picture Association of America
[5]
[4]
MPC
marginal propensity to consume
[3]
[1]
MPEG
Motion Pictures Experts Group
[5]
[4]
MPL
Mozilla Public License
[5]
[4]
multi-crew pilot license
[7]
[6]
MPLS
Multiprotocol Label Switching
[5]
[4]
MPR
Monthly Progress Report
[3]
[1]
MPU
Microprocessor Unit
[5]
[4]
Multifunction Processor Unit
[7]
[6]
MRO
Maintenance, Repair, and Operations
[3]
[1]
maintenance, repair, overhaul
[7]
[6]
maintenance and repair organization
[7]
[6]
Midwest Reliability Organization (US)
[4]
[3]
MRP
Maximum Retail Price
[3]
[1]
Material Resources Planning
[7]
[6]
MS
Microsoft
[5]
[4]
Memory Stick
[5]
[4]
MS-DOS
Microsoft DOS
[5]
[4]
MSA
Mail Submission Agent
[5]
[4]
minimum safe altitude / minimum sector altitude
[7]
[6]
metropolitan statistical area
[4]
[3]
MSB
Most Significant Bit
[5]
[4]
MSDN
Microsoft Developer Network
[5]
[4]
MSI
Medium-Scale Integration
[5]
[4]
Message Signaled Interrupt
[5]
[4]
Microsoft Installer
[5]
[4]
MSN
Microsoft Network
[5]
[4]
MSOD
Monthly Statement of Select Operational Data
[3]
[1]
MSRP
Manufacturer's Suggested Retail Price
[3]
[1]
MT
Machine Translation
[5]
[4]
MTA
Mail Transfer Agent
[5]
[4]
Microsoft Technology Associate
[5]
[4]
MTBF
Mean Time Between Failures
[5]
[4]
Mean time between failures
[7]
[6]
MTD
Month-to-date
[3]
[1]
MTFBWY
May The Force be with you
[6]
[5]
MTM
Mark To Market
[3]
[1]
MTU
Maximum Transmission Unit
[5]
[2]
[4]
MU
Memory Unit
[5]
[4]
MUA
Mail User Agent
[5]
[4]
MUD
Multi-User Dungeon
[5]
[6]
[4]
[5]
MUSH
Multi-User Shared Hallucination
[6]
[5]
MVC
Model-View-Controller
[5]
[4]
MVP
Most Valuable Professional
[5]
[4]
MVS
Multiple Virtual Storage
[5]
[4]
MWC
Managerial Working Capital
[3]
[1]
Mobile World Congress
[5]
[4]
MX
Mail exchange
[5]
[4]
Maintenance
[7]
[6]
MXF
Material Exchange Format
[5]
[4]
MYOB
Mind your own business
[6]
[5]
Mb
Megabit
[5]
[4]
Mbps
Megabits per second
[5]
[4]
MiFID
Markets in Financial Instruments Directive
[3]
[1]
MoBo
Motherboard
[5]
[4]
MoM
Month on Month / Month over Month
[3]
[1]
N1
Nice one, used mostly often in gaming
[6]
[5]
NAC
Network Access Control
[5]
[4]
NACK
Negative ACKnowledgement
[5]
[4]
NAK
Negative AcKnowledge Character
[5]
[4]
NAP
Network Access Protection
[5]
[4]
National Renewable Energy Action Plan
[4]
[3]
NAS
Network-Attached Storage
[5]
[4]
National Airspace System
United States
[7]
[6]
United States National Academy of Sciences
[4]
[3]
NASM
Netwide ASseMbler
[5]
[4]
NAT
Network Address Translation
[5]
[4]
NAV
Net asset value
[3]
[1]
Navigation receiver
Normally VHF navigation receiver for VOR
[7]
[6]
NCBO
No Change of Beneficial Ownership
[3]
[1]
NCND
Non-Circumvent and Non-Disclosure
[3]
[1]
NCP
NetWare Core Protocol
[5]
[4]
NCQ
Native Command Queuing
[5]
[4]
NCSA
National Center for Supercomputing Applications
[5]
[4]
NDA
Non-Disclosure Agreement
[3]
[1]
NDIS
Network Driver Interface Specification
[5]
[4]
NDPS
Novell Distributed Print Services
[5]
[4]
NDS
Novell Directory Services
[5]
[4]
NE1
"Anyone"
[6]
[5]
NEP
Network Equipment Provider
[5]
[4]
NEXT
Near-End CrossTalk
[5]
[4]
NFA
Nondeterministic Finite Automaton
[5]
[4]
NFC
Near-field communication
[5]
[4]
NFO
Opportunity cost
[3]
[1]
NFS
Network File System
[5]
[2]
[4]
NGL
aNGeL
[5]
[4]
Not gonna lie
[6]
[5]
natural gas liquids
[4]
[3]
NGSCB
Next-Generation Secure Computing Base
[5]
[4]
NI
National Instruments
[5]
[4]
NIAS
Net Income Attributable to Shareholders
[3]
[1]
NIC
Network Interface Controller or Network Interface Card
[5]
[4]
NIFOC
Naked In Front Of Computer
[6]
[5]
NII
Net Interest Income
[3]
[1]
NIM
Net Interest Margin
[3]
[1]
No Internal Message
[5]
[4]
NIO
Non-blocking I/O
[5]
[4]
NIST
National Institute of Standards and Technology
[5]
[7]
[4]
[6]
NLE
Non-Linear Editing system
[5]
[4]
NLP
Natural Language Processing
[5]
[4]
NLS
Native Language Support
[5]
[4]
NM
(Sometimes written N/M)
[6]
[5]
Nautical mile
Or: NMI
[7]
[6]
NMI
Non-Maskable Interrupt
[5]
[4]
NNTO
No Need To Open
[3]
[1]
NNTP
Network News Transfer Protocol
[5]
[4]
NOA
Net Operating Assets
[3]
[1]
NOC
Network Operations Center
[5]
[4]
National Oil Company
[4]
[3]
NOI
Net Operating Income
[3]
[1]
Notice of Intent or Notice of Inquiry or Notice of Investigation
[4]
[3]
NOP
No OPeration
[5]
[4]
NOPAT
Net Operating Profit After Tax
[3]
[1]
NOS
Network Operating System
[5]
[4]
NP
Nondeterministic Polynomial time
[5]
[4]
No problem
[6]
[5]
NPA
Non Performing Asset
[3]
[1]
non-precision approach
Instrumental approach
[7]
[6]
notice of proposed amendment
EASA
[7]
[6]
NPL
Non-performing loan
[3]
[1]
Netscape Public License
[5]
[4]
NPTL
Native POSIX Thread Library
[5]
[4]
NPU
Network Processing Unit
[5]
[4]
NPV
Net Present Value
[3]
[4]
[1]
[3]
NS
Netscape
[5]
[4]
Nice shot. Used in online gaming.
[6]
[5]
NSFW
Not safe for work. Warning about content that may get the viewer in trouble with his employer or co-workers.
[6]
[5]
NSIS
Nullsoft Scriptable Install System
[5]
[4]
NSOH
No sense of humor.
[6]
[5]
NSPR
Netscape Portable Runtime
[5]
[4]
NSS
Novell Storage Service
[5]
[4]
Network Security Services
[5]
[4]
Name Service Switch
[5]
[4]
NT
New Technology
[5]
[4]
NTE
Not To Exceed
[3]
[1]
NTFS
NT Filesystem
[5]
[4]
NTLM
NT Lan Manager
[5]
[4]
NTP
Network Time Protocol
[5]
[2]
[4]
NUMA
Non-Uniform Memory Access
[5]
[4]
NURBS
Non-Uniform Rational B-Spline
[5]
[4]
NVM, NVMD, or nm
Nevermind, not much
[6]
[5]
NVR
Network Video Recorder
[5]
[4]
NVRAM
Non-Volatile Random-Access Memory
[5]
[4]
NYMEX
New York Mercantile Exchange
[3]
[4]
[1]
[3]
NYSE
New York Stock Exchange
[3]
[1]
NaN
Not a Number
[5]
[4]
NetBIOS
Network Basic Input/Output System
[5]
[4]
NetBT
NetBIOS over TCP/IP
[5]
[4]
O RLY
Oh really?
[6]
[5]
OASIS
Organization for the Advancement of Structured Information Standards
[5]
[4]
Open Access Same-Time Information System
[4]
[3]
OAT
Operational Acceptance Testing
[5]
[4]
outside air temperature
[7]
[6]
OBSAI
Open Base Station Architecture Initiative
[5]
[4]
OCF
Operating cash flow
[3]
[1]
OCR
Optical Character Recognition
[5]
[4]
ODBC
Open Database Connectivity
[5]
[4]
OECD
Organisation for Economic Co-operation and Development
[3]
[4]
[1]
[3]
OEM
Original equipment manufacturer
[3]
[1]
Original Equipment Manufacturer
[5]
[4]
original equipment manufacturer
[7]
[6]
original equipment manufacturers
[4]
[3]
OES
Open Enterprise Server
[5]
[4]
OFDM
Orthogonal Frequency-Division Multiplexing
[5]
[4]
OFN
Old freaking news
[6]
[5]
OFTC
Open and Free Technology Community
[5]
[4]
OFX
Open Financial Exchange
[2]
OIBDA
Operating income before depreciation and amortization
[3]
[1]
OIC
Oh, I see
[6]
[5]
OID
Object Identifier
[5]
[4]
OKR
Objectives and key results
[3]
[1]
OLAP
Online Analytical Processing
[5]
[4]
OLE
Object Linking and Embedding
[5]
[4]
OLED
Organic Light Emitting Diode
[5]
[4]
OLPC
One Laptop per Child
[5]
[4]
OLTP
Online Transaction Processing
[5]
[4]
OMF
Object Module Format
[5]
[4]
OMFG
Oh my fucking God
[6]
[5]
OMG
Object Management Group
[5]
[4]
Oh my God
[6]
[5]
OMGWTF
Oh my God what the fuck
[6]
[5]
OMGWTFBBQ
Oh my God what the fuck barbecue
[6]
[5]
OMR
Optical Mark Reader
[5]
[4]
OMW
On my way or Oh my word
[6]
[5]
ONOZ
Oh, no
[6]
[5]
OO
Object-Oriented
[5]
[4]
OpenOffice
[5]
[4]
OOE
Out-of-Order Execution
[5]
[4]
OOF
Out of facility, used interchangeably with out of office and originating from the Microsoft Xenix mail system [11]
[3]
[1]
OOM
Out Of Memory
[5]
[4]
OOO
Out of office
[3]
[1]
OOP
Object-Oriented Programming
[5]
[4]
OOTB
Out of the box
[5]
[4]
OOo
OpenOffice.org
[5]
[4]
OP
Original poster / Operator / Outpost / Overpowered
[6]
[5]
OPEX
Operating expenditure or operational expenditure
[3]
[1]
OPML
Outline Processor Markup Language
[5]
[4]
ORB
Object Request Broker
[5]
[4]
ORM
Object–Relational Mapping
[5]
[4]
OS
Operační Systém
[2]
Open Source
[5]
[4]
Operating System
[5]
[4]
Operating system
[6]
[5]
OSA
Ochranný svaz autorský
[2]
OSCON
O'Reilly Open Source CONvention
[5]
[4]
OSDN
Open Source Development Network
[5]
[4]
OSI
Open Source Initiative
[5]
[4]
Open Systems Interconnection
[5]
[4]
OSPF
Open Shortest Path First
[5]
[4]
OSS
Open Sound System
[5]
[4]
Open-Source Software
[5]
[4]
Operations Support System
[5]
[4]
OSTG
Open Source Technology Group
[5]
[4]
OT
Off topic
[6]
[5]
OTB
Off to bed
[6]
[5]
OTC
Over-the-counter (finance)
[3]
[1]
OTIF
On Time In Full
[3]
[1]
OTOH
On the other hand
[6]
[5]
OTP
One-time password
[5]
[4]
On the phone or One true pairing or On The Piss
[6]
[5]
OUI
Organizationally Unique Identifier
[5]
[4]
OoOE
Out-of-Order Execution
[5]
[4]
P&L
Profit and Loss
[3]
[1]
P/E
Price-to-earnings ratio
[3]
[1]
P2B
Platform to Business[12]
[3]
[1]
P2P
Peer-To-Peer
[5]
[4]
Peer to peer, or pay to play
[6]
[5]
PA
Purchasing agent or Personal Assistant
[3]
[1]
Promotional Activity [citation needed]
[3]
[1]
pressure altitude
[7]
[6]
Public address system
[7]
[6]
Planning Authority
—Programmatic Agreement
[4]
[3]
PAM
Privileged Access Management
[5]
[4]
PAN
Personal Area Network
[5]
[4]
PAP
Password Authentication Protocol
[5]
[4]
PARC
Palo Alto Research Center
[5]
[4]
PAT
Profit After Tax
[3]
[1]
PATA
Parallel ATA
[5]
[4]
PAW
Parents are watching
[6]
[5]
PBS
Portable Batch System
[5]
[4]
PBT
Profit Before Tax
[3]
[1]
PC
Personal Computer
[5]
[2]
[4]
proficiency check
[7]
[6]
PC DOS
Personal Computer Disc Operating System
[5]
[4]
PCB
Printed Circuit Board
[5]
[4]
Process Control Block
[5]
[4]
polychlorinated biphenyl
[4]
[3]
PCI
Peripheral Component Interconnect
[5]
[2]
[4]
PCI-X
PCI Extended
[5]
[4]
PCIe
Peripheral Component Interconnect Express
[2]
PCI Express
[5]
[4]
PCL
Printer Command Language
[5]
[4]
Pilot Controlled Lighting
[7]
[6]
PCM
Pulse-Code Modulation
[5]
[4]
Project Cycle Management
[4]
[3]
PCMCIA
Personal Computer Memory Card International Association
[5]
[4]
PCRE
Perl Compatible Regular Expressions
[5]
[4]
PD
Public Domain
[5]
[4]
Profile descent
[7]
[6]
Preliminary Determination
[4]
[3]
PDA
Personal Digital Assistant
[5]
[4]
performance degradation allowance
[7]
[6]
PDF
Portable Document Format
[5]
[4]
PDH
Plesiochronous Digital Hierarchy
[5]
[4]
PDP
Programmed Data Processor
[5]
[4]
PE
Private Equity
[3]
[1]
Physical Extents
[5]
[4]
Portable Executable
[5]
[4]
PEBKAC/PEBCAK
Problem exists between keyboard and chair
[6]
[5]
PEG
Price-to-earnings growth ratio
[3]
[1]
PERL
Practical Extraction and Reporting Language
[5]
[4]
PFA
Please Find Attachment
[5]
[4]
PFI
Private Finance Initiative
[3]
[1]
PG
Peripheral Gateway
[5]
[4]
PGA
Pin Grid Array
[5]
[4]
Programmable Gate Array
[5]
[4]
Purchased gas adjustment
[4]
[3]
PGO
Profile-Guided Optimization
[5]
[4]
PGP
Pretty Good Privacy
[5]
[4]
PHEK
Planherstellungskosten (Product Planning cost)
[3]
[1]
PHP
Hypertext Preprocessor
[5]
[4]
PI
Professional Indemnity (insurance coverage)
[3]
[1]
PIC
Person in charge
[3]
[1]
Peripheral Interface Controller
[5]
[4]
Programmable Interrupt Controller
[5]
[4]
Pilot In Command
[7]
[6]
PID
Proportional-Integral-Derivative
[5]
[4]
Process ID
[5]
[4]
PII
Personally identifiable information
[3]
[1]
PIM
Personal Information Manager
[5]
[4]
PINE
Program for Internet News and Email
[5]
[4]
PING
Packet Internet Gopher
[5]
[4]
PIO
Programmed Input/Output
[5]
[4]
Pilot Induced Oscillations
[7]
[6]
PITA
Pain in the arse / ass
[6]
[5]
PKCS
Public Key Cryptography Standards
[5]
[4]
PKI
Public Key Infrastructure
[5]
[4]
PL
Powerleveling, used in online games.
[6]
[5]
PL/I
Programming Language One
[5]
[4]
PL/M
Programming Language for Microcomputers
[5]
[4]
PL/P
Programming Language for Prime
[5]
[4]
PLC
Power Line Communication
[5]
[4]
Programmable logic controller
[5]
[4]
Power line communication (electricity), Programmable Logic Controller
[4]
[3]
PLD
Programmable logic device
[5]
[4]
PLMK
Please let me know
[6]
[5]
PLR
Prime Lending Rate
[3]
[1]
PLT
Power Line Telecommunications
[5]
[4]
PM
Portfolio manager
[3]
[1]
Private message
[6]
[5]
pilot monitoring
[7]
[6]
Particulate matter
[4]
[3]
PMAC
Period Moving Average Cost
[3]
[1]
PMM
POST Memory Manager
[5]
[4]
PMSL
Pissing myself laughing
[6]
[5]
PNG
Portable Network Graphics
[5]
[4]
PNRP
Peer Name Resolution Protocol
[5]
[4]
PO
Profit Objective or Purchase Order
[3]
[1]
Pilot's Operating Handbook
Sometimes referred to as a POH
[7]
[6]
POA
Plan Of Action
[3]
[1]
Production Organisation Approval
EASA; see also PAH and MHC
[7]
[6]
POC
Point of contact
[3]
[1]
POCO
Plain Old Class Object
[5]
[4]
POID
Persistent Object Identifier
[5]
[4]
POJO
Plain Old Java Object
[5]
[4]
POP
Point of Presence
[5]
[4]
POP3
Post Office Protocol v3
[5]
[4]
POS
Point of sale
[3]
[1]
Piece of shit, or parent over shoulder.
[6]
[5]
Position
[7]
[6]
POSIX
Portable Operating System Interface, formerly IEEE-IX
[5]
[4]
POST
Power-On Self Test
[5]
[4]
POTS
Plain old telephone service
[6]
[5]
POV
Point of view
[6]
[5]
PP&E
Property, plant, and equipment
[3]
[1]
PPC
PowerPC
[5]
[4]
PPI
Public-private partnership
[3]
[1]
Pixels Per Inch
[5]
[4]
producer price index
[4]
[3]
PPL
People
[6]
[5]
private pilot licence
[7]
[6]
PPM
Pages Per Minute
[5]
[4]
PPP
Purchasing power parity
[3]
[1]
Point-to-Point Protocol
[5]
[4]
PPPoA
PPP over ATM
[5]
[4]
PPPoE
PPP over Ethernet
[5]
[4]
PPT
Powerpoint presentation
[3]
[1]
PPTP
Point-to-Point Tunneling Protocol
[5]
[4]
PR
Purchase Requisition
[3]
[1]
Pull Request
[5]
[4]
PRC
Procedure Remote Call
[5]
[4]
PROM
Programmable Read-Only Memory
[5]
[4]
PS
PostScript
[5]
[4]
passenger step
[7]
[6]
PS/2
Personal System/2
[5]
[4]
PSA
Professional Services Automation
[5]
[4]
PSM
Platform Specific Model
[5]
[4]
PSP
Profit Sharing Plan
[3]
[1]
PSTN
Public Switched Telephone Network
[5]
[4]
PSU
Power Supply Unit
[5]
[4]
passenger service unit
[7]
[6]
PSVI
Post-Schema-Validation Infoset
[5]
[4]
PTC
Private Trust Company
[3]
[1]
PTD
Project to Date
[3]
[1]
PTS-DOS
PhysTechSoft – Disk Operating System
[5]
[4]
PV
Physical Volume
[5]
[4]
photovoltaic (solar)
[4]
[3]
PVG
Physical Volume Group
[5]
[4]
PVR
Personal Video Recorder
[5]
[4]
PW
Persistent World (gaming)
[6]
[5]
PWIN
Percent win (a measure of performance of capture when bidding for contracts with a targeted customer base such as bidding for government contracts) [13][14]
[3]
[1]
PWP
Personal Wealth Portfolio
[3]
[1]
PXE
Preboot Execution Environment
[5]
[4]
PXI
PCI eXtensions for Instrumentation
[5]
[4]
PaaS
Platform as a Service
[5]
[4]
Pixel
Picture element
[5]
[4]
PnP
Plug-and-Play
[5]
[4]
PoE
Power over Ethernet
[5]
[4]
[4]
[3]
PoS
Point of Sale
[5]
[4]
Q1
quarters of the accounting year, calendar year or fiscal year
[3]
[1]
QA
Quality Assurance
[5]
[4]
QC
Quality control or Quality costs
[3]
[1]
QDR
Quad Data Rate
[5]
[4]
QFP
Quad Flat Package
[5]
[4]
QFT
Quoted for truthiness—either to show satire or agreement with something satiric.
[6]
[5]
QOTD
Quote of the Day
[5]
[4]
QPR
Quarterly Performance Report
[3]
[1]
QRP
Qualified Retirement Plan
[3]
[1]
QSOP
Quarter Small Outline Package
[5]
[4]
QTAM
Queued Teleprocessing Access Method
[5]
[4]
QWP
(texting) Quit Whining, Please. (gaming) equip (verb) / equipment (noun).
[6]
[5]
QoQ
Quarter on quarter
[3]
[1]
QoS
Quality of Service
[5]
[4]
Qt
Quasar Toolkit
[5]
[4]
R&D
Research and Development
[3]
[1]
R/O
Rollover
[3]
[1]
RACF
Resource Access Control Facility
[5]
[4]
RAD
Rapid Application Development
[5]
[4]
RADIUS
Remote Authentication Dial In User Service
[5]
[4]
RAID
Redundant Array of Independent Disks
[5]
[4]
RAII
Resource Acquisition Is Initialization
[5]
[4]
RAIT
Redundant Array of Inexpensive Tapes
[5]
[4]
RAM
Random Access Memory
[2]
Random-Access Memory
[5]
[4]
RAQSCI
Regulatory, Assurance of Supply, Quality, Service, Cost, Innovation (see RAQSCI)
[3]
[1]
RARP
Reverse Address Resolution Protocol
[5]
[4]
RAS
Reliability, Availability and Serviceability
[5]
[4]
Remote access service
[5]
[4]
rectified air speed
[7]
[6]
Remedial Action Scheme
[4]
[3]
RBA
Reserve Bank of Australia
[3]
[1]
RBI
Reserve Bank of India
[3]
[1]
RC
Retail Company
[3]
[1]
Region Code
[5]
[4]
Release Candidate
[5]
[4]
Run Commands
[5]
[4]
Reliability Coordinator
[4]
[3]
RCA
Root Cause Analysis
[5]
[4]
RCP
Reality Coprocesser
[5]
[4]
RCS
Revision Control System
[5]
[4]
RD
Remote Desktop
[5]
[4]
RDBMS
Relational Database Management System
[5]
[4]
RDC
Remote Desktop Connection
[5]
[4]
RDF
Resource Description Framework
[5]
[4]
refuse derived fuel (electricity)
[4]
[3]
RDM
Relational Data Model
[5]
[4]
RDOS
Real-time Disk Operating System
[5]
[4]
RDP
Remote Desktop Protocol
[5]
[4]
Radar data processing system
[7]
[6]
RDS
Remote Data Services
[5]
[4]
RE
Retained Earnings
[3]
[1]
REFAL
Recursive Functions Algorithmic Language
[5]
[4]
REIT
Real Estate Investment Trust
[3]
[1]
REP
RAID Error Propagation
[5]
[4]
REST
Representational State Transfer
[5]
[4]
RESV
Reservation Message
[5]
[4]
REXX
Restructured Extended Executor Language
[5]
[4]
RF
Radio Frequency
[5]
[4]
Radio frequency
[7]
[4]
[6]
[3]
RFC
Request For Comments
[5]
[4]
ReliabilityFirst Corporation (US) (electricity)
[4]
[3]
RFI
Request for information
[3]
[1]
Radio Frequency Interference
[5]
[4]
Radio frequency interference
[7]
[6]
recreational flight instructor
[7]
[6]
Request for Interchange
[4]
[3]
RFID
Radio Frequency Identification
[5]
[4]
RFP
Request for Proposal
[3]
[1]
Request for proposals
[4]
[3]
RFQ
Request for Quotation
[3]
[1]
RFX
Generic name for a Request for Information, Proposal or Quotation
[3]
[1]
RGB
Red, Green, Blue
[5]
[4]
reduction gear box
[7]
[6]
RGBA
Red, Green, Blue, Alpha
[5]
[4]
RHEL
Red Hat Enterprise Linux
[5]
[4]
RHL
Red Hat Linux
[5]
[4]
RIA
Rich Internet Application
[5]
[4]
regulatory impact assessment (EASA)
[7]
[6]
RIAA
Recording Industry Association of America
[5]
[4]
RIP
Raster Image Processor
[5]
[4]
Routing Information Protocol
[5]
[4]
RIR
Regional Internet registry
[5]
[4]
RISC
Reduced Instruction Set Computer
[5]
[4]
RISC OS
Reduced Instruction Set Computer Operating System
[5]
[4]
RJE
Remote Job Entry
[5]
[4]
RL
Real Life
[6]
[5]
RLE
Run-Length Encoding
[5]
[4]
RLL
Run-Length Limited
[5]
[4]
RMD
Required Minimum Distribution
[3]
[1]
RMI
Remote Method Invocation
[5]
[4]
radio magnetic indicator
[7]
[6]
RMS
Richard Matthew Stallman
[5]
[4]
Ride me sideways
[6]
[5]
ROA
Return on assets
[3]
[1]
Return of Assets (finance)
[4]
[3]
ROB
Return on brand
[3]
[1]
ROC
Registration Of Company
[3]
[1]
ROCE
Return on Capital Employed
[3]
[1]
ROE
Return on Equity
[3]
[1]
Return of Equity (finance)
[4]
[3]
ROFL/ROTFL
Rolling on (the) floor laughing
[6]
[5]
ROFLCOPTER
Indicate extreme amusement
[6]
[5]
ROFLMAO/ROTFLMAO
Rolling on (the) floor laughing my ass off
[6]
[5]
ROFLOL/ROTFLOL
Rolling on (the) floor laughing out loud
[6]
[5]
ROI
Return on Investment
[3]
[4]
[1]
[3]
ROIC
Return on Invested Capital
[3]
[1]
ROM
Read-Only Memory
[5]
[4]
ROM-DOS
Read-Only Memory – Disk Operating System
[5]
[4]
ROMB
Read-Out Motherboard
[5]
[4]
RONA
Return on net assets
[3]
[1]
ROS
Return on Sales
[3]
[1]
RPA
Robotic Process Automation
[5]
[4]
Remotely Piloted Aircraft
Or: Unmanned aerial vehicle (UAV)
[7]
[6]
RPC
Remote Procedure Call
[5]
[4]
RPG
Report Program Generator
[5]
[4]
RPM
Redhat Pakage Manager
[2]
RPM Package Manager
[5]
[4]
Revolutions per minute
[7]
[6]
Reliability Pricing Model. See explanation in electricity market#Deregulated market experience. (electricity)
[4]
[3]
RR
Resource rent
[3]
[1]
RRAS
Routing and Remote Access Service
[5]
[4]
RSA
Rivest Shamir Adleman
[5]
[4]
runway safety area
[7]
[6]
RSI
Repetitive Strain Injury
[5]
[4]
RSN
Real soon now (used sarcastically)
[6]
[5]
RSP
Retail selling price
[3]
[1]
Reversion switch panel
[7]
[6]
RSS
Rich Site Summary
[2]
Radio Service Software
[5]
[4]
Rich Site Summary, RDF Site Summary, or Really Simple Syndication
[5]
[4]
RSVP
Resource Reservation Protocol
[5]
[4]
RTAI
Real-Time Application Interface
[5]
[4]
RTC
Real-Time Clock
[5]
[4]
RTE
Real-Time Enterprise
[5]
[4]
Route
[7]
[6]
RTEMS
Real-Time Executive for Multiprocessor Systems
[5]
[4]
RTF
Rich Text Format
[5]
[4]
radiotelephony
[7]
[6]
RTFB
Read the fucking binary (or book)
[6]
[5]
RTFM/RTM
Read the (fucking/fine) manual or reboot the (fucking) machine
[6]
[5]
RTFS
Read the fucking source
[6]
[5]
RTL
Right-to-Left
[5]
[4]
rudder travel limiting
[7]
[6]
RTMP
Real Time Messaging Protocol
[5]
[4]
RTOS
Real-Time Operating System
[5]
[4]
RTP
Real-time Transport Protocol
[5]
[4]
Real time Pricing
[4]
[3]
RTS
Ready To Send
[5]
[4]
RTSP
Real Time Streaming Protocol
[5]
[2]
[4]
RTTI
Run-time Type Information
[5]
[4]
RTU
Remote Terminal Unit
[5]
[4]
[4]
[3]
RWA
Risk-weighted asset
[3]
[1]
RWD
Responsive Web Design
[5]
[4]
S&M
Sales & Marketing
[3]
[1]
S&OP
Sales and operations planning
[3]
[1]
S/MIME
Secure/Multipurpose Internet Mail Extensions
[5]
[4]
SAAS
Software-as-a-Service
[3]
[1]
SAM
Strategic Asset Management or Software Asset Management
[3]
[1]
Security Account Manager
[5]
[4]
SAN
Storage Area Network
[5]
[4]
SAS
Serial-Attached SCSI
[2]
Serial attached SCSI
[5]
[4]
stability augmentation system
[7]
[6]
SASS
Syntactically Awesome Style Sheets
[5]
[4]
SATA
Serial AT Attachment
[2]
Serial ATA
[5]
[4]
SAX
Simple API for XML
[5]
[4]
SBLC
Stand By Letter of Credit
[3]
[1]
SBOD
Spinning Beachball of Death
[5]
[4]
SBP-2
Serial Bus Protocol 2
[5]
[4]
SBU
Strategic Business Unit
[3]
[1]
Standard Build Unit
[5]
[4]
SCADA
Supervisory Control And Data Acquisition
[5]
[4]
Supervisory control and data acquisition a remote control and telemetry system used to monitor and control the electrical system
[4]
[3]
SCBA
Social Cost Benefit Analysis
[3]
[1]
SCID
Source Code in Database
[5]
[4]
SCM
Supply Chain Management
[3]
[1]
Software Configuration Management
[5]
[4]
Source Code Management
[5]
[4]
SCNR
Sorry, could not resist
[6]
[5]
SCP
Secure copy
[2]
Secure Copy
[5]
[4]
SCPC
Single Channel Per Carrier
[5]
[4]
SCPI
Standard Commands for Programmable Instrumentation
[5]
[4]
SCSA
Secure Content Storage Association
[5]
[4]
SCSI
Small Computer System Interface
[5]
[4]
SCTP
Stream Control Transmission Protocol
[5]
[4]
SD
Secure Digital
[5]
[4]
Secure digital
[7]
[6]
SDDL
Security Descriptor Definition Language
[5]
[4]
SDH
Synchronous Digital Hierarchy
[5]
[4]
SDI
Single-Document Interface
[5]
[4]
SDIO
Secure Digital Input Output
[5]
[4]
SDK
Software Development Kit
[5]
[2]
[4]
SDL
Simple DirectMedia Layer
[5]
[4]
SDN
Service Delivery Network
[5]
[4]
SDP
Session Description Protocol
[5]
[4]
SDR
Software-Defined Radio
[5]
[4]
SDRAM
Synchronous Dynamic Random-Access Memory
[5]
[4]
SDSL
Symmetric DSL
[5]
[4]
SE
Single Ended
[5]
[4]
SEBI
Securities and Exchange Board of India
[3]
[1]
SEC
Securities and Exchange Commission
[3]
[1]
Single Edge Contact
[5]
[4]
Securities and Exchange Commission (US)
[4]
[3]
SEDOL
Stock Exchange Daily Official List
[3]
[1]
SEI
Software Engineering Institute
[5]
[4]
SEO
Search Engine Optimization
[5]
[4]
SF
Structured Finance
[3]
[1]
Stratus Fractus
Cloud type
[7]
[6]
Safe Failure
[4]
[3]
SFTP
Secure FTP
[5]
[4]
Simple File Transfer Protocol
[5]
[4]
SSH File Transfer Protocol
[5]
[4]
SFW
Safe for Work, see NSFW
[6]
[5]
SG&A
Sales, General, and Administrative expenses
[3]
[1]
SGI
Silicon Graphics, Incorporated
[5]
[4]
SGML
Standard Generalized Markup Language
[5]
[4]
SGR
Select Graphic Rendition
[5]
[4]
State game refuge (US)
[4]
[3]
SHA
Secure Hash Algorithm
[5]
[4]
SHDSL
Single-pair High-speed Digital Subscriber Line
[5]
[4]
SIEM
Security information and event management
[5]
[4]
SIGCAT
Special Interest Group on CD-ROM Applications and Technology
[5]
[4]
SIGGRAPH
Special Interest Group on Graphics
[5]
[4]
SIM
Subscriber Identification Module
[5]
[4]
SIMD
Single Instruction, Multiple Data
[5]
[4]
SIMM
Single Inline Memory Module
[5]
[4]
SIMPLE
Savings Incentive Match Plan for Employees
[3]
[1]
SIOP
Sales Inventory and Operations Plan
[3]
[1]
SIP
Session Initiation Protocol
[5]
[4]
Supplementary Ideographic Plane
[5]
[4]
SIR
Stores Issuance Requisition
[3]
[1]
savings-to-investment ratio (energy conservation investments)
[4]
[3]
SISD
Single Instruction, Single Data
[5]
[4]
SISO
Single-Input and Single-Output
[5]
[4]
SIV
Structured investment vehicle
[3]
[1]
SKU
Stock keeping unit
[3]
[1]
SLA
Service Level Agreement
[3]
[5]
[1]
[4]
Specific leakage area
[4]
[3]
SLED
SUSE Linux Enterprise Desktop
[5]
[4]
SLES
SUSE Linux Enterprise Server
[5]
[4]
SLI
Scalable Link Interface
[5]
[4]
SLIP
Serial Line Internet Protocol
[5]
[4]
SLM
Service Level Management
[5]
[4]
SLOC
Source Lines of Code
[5]
[4]
SLR
Statutory Liquidity Ratio
[3]
[1]
SMA
Separately Managed Account
[3]
[1]
SubMiniature version A
[5]
[4]
SMB
Server Message Block
[5]
[4]
SMBIOS
System Management BIOS
[5]
[4]
SME
Small and Medium Enterprises
[3]
[1]
Subject Matter Expert
[5]
[4]
SMF
Single-Mode (optical) Fiber
[5]
[4]
SMH
Shaking my head
[6]
[5]
SMIL
Synchronized Multimedia Integration Language
[5]
[4]
SMP
Supplementary Multilingual Plane
[5]
[4]
Symmetric Multi-Processing
[5]
[4]
SMPS
Switch Mode Power Supply
[5]
[4]
SMS
Short Message Service
[5]
[4]
System Management Server
[5]
[4]
Short Messaging Service
[7]
[6]
SMT
Simultaneous Multithreading
[5]
[4]
software maintenance tool
[7]
[6]
SMTP
Simple Mail Transport Protocol
[2]
Simple Mail Transfer Protocol
[5]
[4]
SNA
Systems Network Architecture
[5]
[4]
SNAFU
Situation normal: all (fucked/fouled) up
[6]
[5]
SNMP
Simple Network Management Protocol
[5]
[4]
SNTP
Simple Network Time Protocol
[5]
[4]
SO-DIMM
Small Outline DIMM
[5]
[4]
SOA
Service-Oriented Architecture
[5]
[4]
SOAP
Simple Object Access Protocol,
[2]
Simple Object Access Protocol
[5]
[4]
Symbolic Optimal Assembly Program
[5]
[4]
SOE
Standard Operating Environment
[5]
[4]
SOHF
Sense of humor failure
[6]
[5]
SOHO
Small office/home office
[3]
[1]
Small Office/Home Office
[5]
[4]
SOI
Silicon On Insulator
[5]
[4]
SOLID
Single-responsibility, Open-closed, Liskov substitution, Interface segregation, Dependency Inversion
[5]
[4]
SOP
Standard operating procedure
[3]
[1]
standard operating procedure
[7]
[6]
SOPA
Stop Online Piracy Act
[5]
[4]
SOS
Someone (watching) Over Shoulder
[6]
[5]
SOW
Statement of Work
[3]
[7]
[1]
[6]
SOX
Sarbanes-Oxley
[3]
[1]
SP
Service Pack
[5]
[4]
SPA
Single Page Application
[5]
[4]
SPARC
Scalable Processor Architecture
[5]
[4]
SPF
Sender Policy Framework
[5]
[4]
SPI
Serial Peripheral Interface
[5]
[4]
Stateful Packet Inspection
[5]
[4]
SPM
Software project management
[5]
[4]
SPMD
Single Program, Multiple Data
[5]
[4]
SPOF
Single point of failure
[5]
[4]
SPP
Systematic Payment Plan
[3]
[1]
Southwest Power Pool Inc., a regional transmission organization (US)
—Statewide Pricing Pilot (US-California)
[4]
[3]
SQL
Server Query Language
[2]
Structured Query Language
[5]
[4]
SRAM
Static Random-Access Memory
[5]
[4]
SROI
Social return on investment
[3]
[1]
SSA
Static Single Assignment
[5]
[4]
SSD
Solid State Drive
[2]
Software Specification Document
[5]
[4]
Solid-State Drive
[5]
[4]
SSDP
Simple Service Discovery Protocol
[5]
[4]
SSE
Streaming SIMD Extensions
[5]
[4]
steady-state efficiency
[4]
[3]
SSH
Secure Shell
[5]
[4]
SSI
Server Side Includes
[5]
[4]
Single-System Image
[5]
[4]
Small-Scale Integration
[5]
[4]
SSID
Service Set Identifier
[5]
[4]
SSL
Secure Sockets Layer
[2]
Secure Socket Layer
[5]
[4]
SSN
Social Security Number
[3]
[1]
SSO
Single Sign On
[5]
[4]
SSP
Supplementary Special-purpose Plane
[5]
[4]
SSR
Server Side Rendering
[5]
[4]
Secondary surveillance radar
[7]
[6]
SSSE
Supplementary Streaming SIMD Extensions
[5]
[4]
SSSP
Single Source Shortest Path
[5]
[4]
SSTP
Secure Socket Tunneling Protocol
[5]
[4]
STFU
Shut the fuck up
[6]
[5]
STFW
Search the fucking web
[6]
[5]
STP
Situation Target Proposal or Situation Target Path [15]
[3]
[1]
Standard temperature and pressure
[7]
[6]
SUA
Start Up Agreement
[3]
[1]
Special use airspace
[7]
[6]
SUS
Single UNIX Specification
[5]
[4]
SUSE
Software und System-Entwicklung
[5]
[4]
SVC
Scalable Video Coding
[5]
[4]
Static VAR compensator (electricity)
[4]
[3]
SVD
Structured VLSI Design
[5]
[4]
SVG
Scalable Vector Graphics
[5]
[4]
SVGA
Super Video Graphics Array
[5]
[4]
SVN
Subversion
[2]
SWF
Shock Wave Flash
[5]
[4]
SWIP
Systematic Withdrawal from Investment Plan
[3]
[1]
SWM
Strategic Wealth Management
[3]
[1]
SWOT
Strengths, Weaknesses, Opportunities, Threats
[3]
[1]
SWT
Standard Widget Toolkit
[5]
[4]
SaaS
Software as a Service
[5]
[4]
See also
0–9
1337
From the word Leet, derived from the word elite
[6]
[5]
SoC
System-on-a-Chip
[5]
[4]
State of charge of rechargeable battery
[4]
[3]
St
Sales, during time period t.
[3]
[1]
Stg
Sterling, the currency of the United Kingdom
[3]
[1]
Sysop
System operator
[5]
[4]
TANSTAAFL
There ain't no such thing as a free lunch, a quote originally from Robert Heinlein's The Moon is a Harsh Mistress
[6]
[5]
TAO
Track-At-Once
[5]
[4]
TAPI
Telephony Application Programming Interface
[5]
[4]
TASM
Turbo ASseMbler
[5]
[4]
TB
Transaction Banking
[3]
[1]
TeraByte
[5]
[4]
TBA
To Be Announced
[3]
[1]
tertiary butyl alcohol
[4]
[3]
TBC
To Be Completed or To Be Confirmed
[3]
[1]
TBD
To Be Defined or To Be Determined
[3]
[1]
TBF
To be fair, Time between failures
[6]
[5]
TBH
To be honest
[6]
[5]
TCO
Total Cost of Ownership
[3]
[1]
TCP
Transmission Control Protocol
[5]
[2]
[4]
TCP/IP
Transmission Control Protocol/Internet Protocol
[5]
[4]
TCU
Telecommunication Control Unit
[5]
[4]
Telecommunication control unit
Or: terminal control unit, or line control unit, used in Air traffic control
[7]
[6]
TCV
Total Contract Value
[3]
[1]
TDMA
Time Division Multiple Access
[2]
Time-Division Multiple Access
[5]
[4]
TDP
Thermal Design Power
[5]
[2]
[4]
TFT
Thin-Film Transistor
[5]
[4]
Thin-film transistor
[7]
[6]
TFTP
Trivial File Transfer Protocol
[5]
[4]
TFW
That feel when
[6]
[5]
TG
That's great
[6]
[5]
TGIF
Thank God it's Friday
[6]
[5]
THX/THNX, TNX or TX
Thanks
[6]
[5]
TI
Texas Instruments
[5]
[4]
TIA
Thanks in advance
[6]
[5]
TIFF
Tagged Image File Format
[5]
[4]
TIL
Today I learned
[6]
[5]
TIMWTK
This inquiring mind wants to know
[6]
[5]
TINC
There Is No Cabal, a term discouraging conspiracy theories
[6]
[5]
TL;DR
Too Long; Didn't Read
[6]
[5]
TLA
Three-Letter Acronym
[5]
[4]
Three-letter acronym
[7]
[6]
Thrust lever angle
[7]
[6]
TLD
Top-Level Domain
[5]
[4]
time-limited dispatch
[7]
[6]
TLS
Thread-Local Storage
[5]
[4]
Transport Layer Security
[5]
[4]
transponder landing system
[7]
[6]
TLV
Type—length—value
[5]
[4]
TMI
Too much information
[6]
[5]
TNC
Terminal Node Controller
[5]
[4]
Threaded Neill-Concelman connector
[5]
[4]
TOS
Terms of service
[6]
[5]
TOTW
Time Off for Time Worked
[3]
[1]
TPF
Transaction Processing Facility
[5]
[4]
TPM
Trusted Platform Module
[5]
[4]
TQM
Total Quality Management
[3]
[1]
TROFF
Trace Off
[5]
[4]
TRON
Trace On
[5]
[4]
The Real-time Operating system Nucleus
[5]
[4]
TRSDOS
Tandy Radio Shack – Disk Operating System
[5]
[4]
TSO
Time Sharing Option
[5]
[4]
technical standard order[2]
FAA specification of quality standard.
[7]
[6]
Transmission system operator) (electricity)
[4]
[3]
TSP
Traveling Salesman Problem
[5]
[4]
TSR
Total shareholder return
[3]
[1]
Terminate and Stay Resident
[5]
[4]
Transmission service request (electricity)
[4]
[3]
TTA
True Tap Audio
[5]
[4]
TTBOMK
To the best of my knowledge
[6]
[5]
TTF
TrueType Font
[5]
[4]
TTFN
Ta ta for now
[6]
[5]
TTL
Transistor—Transistor Logic
[5]
[4]
Time To Live
[5]
[4]
Tuned to Localizer
[7]
[6]
TTM
Trailing Twelve Months
[3]
[1]
TTS
Text-to-Speech
[5]
[4]
Time to station
[7]
[6]
TTY
Teletype
[5]
[4]
TTYL
Talk to you later (also spelled TTUL, T2UL or T2YL)
[6]
[5]
TTYN
Talk to you never
[6]
[5]
TTYS
Talk to you soon
[6]
[5]
TUCOWS
The Ultimate Collection of Winsock Software
[5]
[4]
TUG
TeX Users Group
[5]
[4]
TVM
Time Value of Money
[3]
[1]
TWAIN
Technology Without An Interesting Name
[5]
[4]
TY
Thank you
[6]
[5]
TYT
Take your time
[6]
[5]
TYVM
Thank you very much
[6]
[5]
Tcl
Tool Command Language
[5]
[4]
Ts & Cs
Terms and Conditions
[3]
[1]
U
You
[6]
[5]
UAAG
User Agent Accessibility Guidelines
[5]
[4]
UAC
User Account Control
[5]
[4]
Upper area control
[7]
[6]
UART
Universal Asynchronous Receiver/Transmitter
[5]
[4]
Universal asynchronous receiver-transmitter
[7]
[6]
UAT
User Acceptance Testing
[5]
[4]
UB
Undefined Behavior
[5]
[4]
UCS
Universal Character Set
[5]
[4]
UDDI
Universal Description, Discovery, and Integration
[5]
[4]
UDMA
Ultra DMA
[5]
[4]
UDP
User Datagrap Protocol
[2]
User Datagram Protocol
[5]
[4]
UEFI
Unified Extensible Firmware Interface
[5]
[4]
UGO
You got Owned
[6]
[5]
UHF
Ultra High Frequency
[5]
[4]
ultra-high frequency
[7]
[6]
UI
User Interface
[5]
[4]
UL
Upload
[5]
[4]
ULA
Uncommitted Logic Array
[5]
[4]
ULSI
Ultra Large Scale Integration
[5]
[4]
UMA
Upper Memory Area
[5]
[4]
UMB
Upper Memory Block
[5]
[4]
UML
Unified Modeling Language
[5]
[4]
User-Mode Linux
[5]
[4]
UMPC
Ultra-Mobile Personal Computer
[5]
[4]
UMTS
Universal Mobile Telecommunications System
[5]
[4]
UNC
Universal Naming Convention
[5]
[4]
UNIVAC
Universal Automatic Computer (By MKS)
[5]
[4]
UPI
Unified Payment Interface
[3]
[1]
UPS
Uninterruptible Power Supply or Uninterrupted Power Supply
[5]
[4]
URI
Uniform Resource Identifier
[5]
[4]
URL
Uniform Resource Locator
[5]
[2]
[4]
URN
Uniform Resource Name
[5]
[4]
URS
You Really Suck
[6]
[5]
USB
Universal Serial Bus
[5]
[7]
[2]
[4]
[6]
USP
Unique Selling Proposition
[3]
[1]
USR
U.S. Robotics
[5]
[4]
UTC
Coordinated Universal Time
[5]
[4]
Universal Time Coordinated
Indicates time zones
[7]
[6]
UTF
Unicode Transformation Format
[5]
[4]
UTFSE
Use the fucking search engine
[6]
[5]
UTP
Unshielded Twisted Pair
[5]
[4]
UTRAN
Universal Terrestrial Radio Access Network
[5]
[4]
UUCP
Unix to Unix Copy
[5]
[4]
UUID
Universally Unique Identifier
[5]
[4]
UUN
Universal User Name
[5]
[4]
UVC
Universal Virtual Computer
[5]
[4]
UWP
Universal Windows Platform
[5]
[4]
UX
User Experience
[5]
[4]
VAD
Value-Added Distributor
[3]
[1]
VAR
Value-Added Reseller
[3]
[1]
Variation
[7]
[6]
VAT
Value-Added Tax
[3]
[1]
VAX
Virtual Address eXtension
[5]
[4]
VB
Visual Basic
[5]
[4]
VBA
Visual Basic for Applications
[5]
[4]
VBS
Visual Basic Script
[5]
[4]
VC
Venture Capital
[3]
[1]
VCPI
Virtual Control Program Interface
[5]
[4]
VCS
Version Control System
[2]
vehicle control service
[7]
[6]
VDI
Virtual Desktop Infrastructure
[5]
[4]
VDM
Virtual DOS machine
[5]
[4]
VDSL
Very High Bitrate Digital Subscriber Line
[5]
[4]
VDU
Visual Display Unit
[5]
[4]
VESA
Video Electronics Standards Association
[5]
[4]
VFAT
Virtual FAT
[5]
[4]
VFS
Virtual File System
[5]
[4]
VG
Volume Group
[5]
[4]
vortex generator
[7]
[6]
VGA
Video Graphics Array
[5]
[7]
[4]
[6]
VHD
Virtual Hard Disk
[5]
[4]
VHF
Very High Frequency
[5]
[4]
very high frequency
[7]
[6]
VIRUS
Vital Information Resource Under Seize
[5]
[4]
VLAN
Virtual Local Area Network
[5]
[4]
VLB
Vesa Local Bus
[5]
[4]
VLF
Very Low Frequency
[5]
[4]
VLIW
Very Long Instruction Word
[5]
[4]
VLSI
Very-Large-Scale Integration
[5]
[4]
VLSM
Variable-length subnet masking
[5]
[4]
VM
Virtual Machine
[5]
[4]
Virtual Memory
[5]
[4]
VMM
Virtual Machine Monitor
[5]
[4]
VNC
Virtual Network Computing
[5]
[2]
[4]
VFR navigation chart
[7]
[6]
VOD
Video On Demand
[5]
[4]
VP
Vice President
[3]
[1]
VPN
Virtual Private Network
[5]
[2]
[4]
VPS
Virtual Private Server
[5]
[2]
[4]
VPU
Visual Processing Unit
[5]
[4]
VR
Virtual Reality
[5]
[4]
VRAM
Video Random-Access Memory
[5]
[4]
VRML
Virtual Reality Modeling Language
[5]
[4]
VSAM
Virtual Storage-Access Method
[5]
[4]
VSAT
Very Small Aperture Terminal
[5]
[4]
VT
Video Terminal
[5]
[4]
VTAM
Virtual Telecommunications Access Method
[5]
[4]
VTL
Virtual Tape Library
[5]
[4]
VaR
Value at Risk
[3]
[1]
VoIP
Voice over Internet Protocol
[5]
[4]
VoLTE
Voice Over Long Term Evolution
[5]
[4]
W/ or W/O
With or without
[6]
[5]
W/E
Whatever
[6]
[5]
Weekend
[6]
[5]
W3C
World Wide Web Consortium
[5]
[4]
W8
Wait
[6]
[5]
WACC
Weighted average cost of capital
[3]
[1]
WAFS
Wide Area File Services
[5]
[4]
WAI
Web Accessibility Initiative
[5]
[4]
WAIS
Wide Area Information Server
[5]
[4]
WAN
Wide Area Network
[5]
[4]
WAP
Wireless Access Point
[5]
[4]
Wireless Application Protocol
[5]
[4]
WASM
Watcom ASseMbler
[5]
[4]
WB
Welcome back
[6]
[5]
WBEM
Web-Based Enterprise Management
[5]
[4]
WBU
What (a)bout you
[6]
[5]
WC
Working capital
[3]
[1]
WCAG
Web Content Accessibility Guidelines
[5]
[4]
WCF
Windows Communication Foundation
[5]
[4]
WDM
Wavelength-Division Multiplexing
[5]
[4]
Wiring Diagram Manual
[7]
[6]
WDS
Wireless Distribution System
[2]
WDYM
What do you mean?
[6]
[5]
WEP
Wired Equivalent Privacy
[5]
[4]
War Emergency Power
[7]
[6]
WFH
Work From Home
[3]
[1]
WFI
Wait For Interrupt
[5]
[4]
WHT
Withholding Tax
[3]
[1]
WIGs
Wildly Important Goals
[3]
[1]
WINS
Windows Internet Name Service
[5]
[4]
WLAN
Wireless Local Area Network
[5]
[4]
WLL
With Limited Liability
[3]
[1]
WMA
Windows Media Audio
[5]
[4]
WXR waveguide adapter
[7]
[6]
WMI
Windows Management Instrumentation
[5]
[4]
WXR indicator mount
[7]
[6]
WMV
Windows Media Video
[5]
[4]
WNS
Windows Push Notification Service
[5]
[4]
WOGs
With other Goods
[3]
[1]
WOL
Wake-on-LAN
[5]
[4]
WOR
Wake-on-Ring
[5]
[4]
WORA
Write once, run anywhere
[5]
[4]
WORE
Write once, run everywhere
[5]
[4]
WORM
Write Once Read Many
[5]
[4]
WPA
Wi-Fi Protected Access
[5]
[4]
WPAD
Web Proxy Autodiscovery Protocol
[5]
[4]
WPAN
Wireless Personal Area Network
[5]
[4]
WPF
Windows Presentation Foundation
[5]
[4]
WRT
With respect / regard to
[6]
[5]
WXR receiver transmitter
[7]
[6]
WS-D
Web Services-Discovery
[5]
[4]
WSDL
Web Services Description Language
[5]
[4]
WSFL
Web Services Flow Language
[5]
[4]
WTB
Want to buy
[6]
[5]
WTD
Week-To-Date
[3]
[1]
WTF
What the fuck
[6]
[5]
WTG
Way to go
[6]
[5]
Wind turbine generator (wind)
[4]
[3]
WTH
What the hell
[6]
[5]
WTI
Withdraw Voucher Note
[3]
[1]
West Texas Intermediate (US)
[4]
[3]
WTO
World Trade Organization
[3]
[1]
WTS
Want to sell
[6]
[5]
WTT
Want to trade
[6]
[5]
WUBU2
What (have) you been up to?
[6]
[5]
WUG
What you got?
[6]
[5]
WUSB
Wireless Universal Serial Bus
[5]
[4]
WUU2
What (are) you up to?
[6]
[5]
WW
World Wide
[3]
[1]
WWAN
Wireless Wide Area Network
[5]
[4]
WWDC
Apple World Wide Developer Conference
[5]
[4]
WWID
World Wide Identifier
[5]
[4]
WWN
World Wide Name
[5]
[4]
WWW
World Wide Web
[5]
[4]
WYD
What (are) you doing?
[6]
[5]
WYSIWYG
What You See Is What You Get
[5]
[4]
What you see is what you get
[6]
[5]
WZC
Wireless Zero Configuration
[5]
[4]
WebDAV
WWW Distributed Authoring and Versioning
[5]
[4]
WiMAX
Worldwide Interoperability for Microwave Access
[5]
[4]
WinFS
Windows Future Storage
[5]
[4]
WinRT
Windows RunTime
[5]
[4]
WoW
World of Warcraft
[2]
XAML
eXtensible Application Markup Language
[5]
[4]
XCBL
XML Common Business Library
[5]
[4]
XDM
X Window Display Manager
[5]
[4]
XDMCP
X Display Manager Control Protocol
[5]
[4]
XHTML
eXtensible Hypertext Markup Language
[5]
[4]
XILP
X Interactive ListProc
[5]
[4]
XML
eXtensible Markup Language
[5]
[2]
[4]
XMMS
X Multimedia System
[5]
[4]
XMPP
eXtensible Messaging and Presence Protocol
[5]
[4]
XMS
Extended Memory Specification
[5]
[4]
XNS
Xerox Network Systems
[5]
[4]
XP
Cross-Platform
[5]
[4]
Extreme Programming
[5]
[4]
XPCOM
Cross Platform Component Object Model
[5]
[4]
XPI
XPInstall
[5]
[4]
XPIDL
Cross-Platform IDL
[5]
[4]
XPS
XML Paper Specification
[5]
[4]
XSD
XML Schema Definition
[5]
[4]
XSL
eXtensible Stylesheet Language
[5]
[4]
XSL-FO
eXtensible Stylesheet Language Formatting Objects
[5]
[4]
XSLT
eXtensible Stylesheet Language Transformations
[5]
[4]
XSS
Cross-Site Scripting
[5]
[4]
XTF
eXtensible Tag Framework
[5]
[4]
eXtended Triton Format
[5]
[4]
XUL
XML User Interface Language
[5]
[4]
XVGA
Extended Video Graphics Adapter
[5]
[4]
Y2K
Year Two Thousand
[5]
[4]
Y2K38
Year Two Thousand Thirty Eight
[5]
[4]
YAAF
Yet Another Application Framework
[5]
[4]
YACC
Yet Another Compiler Compiler
[5]
[4]
YAGNI
You Aren't Gonna Need It
[5]
[4]
You Ain't Gonna Need It.
[6]
[5]
YAGTOH
you are going to own him.
[6]
[5]
YAML
YAML Ain't Markup Language
[5]
[4]
YARN
Yet Another Resource Negotiator
[5]
[4]
YEJ
Year-Ending-June
[3]
[1]
YGM
You've Got Mail.
[6]
[5]
YHBT
You have been trolled.
[6]
[5]
YKW
You know what?
[6]
[5]
YMMV
Your mileage may vary.
[6]
[5]
YOLO
You Only Live Once.
[6]
[5]
YOY
Year-over-year
[3]
[1]
YOYO
You're On Your Own.
[6]
[5]
YTC
Yet-To-Confirm
[3]
[1]
YTD
Year-to-date
[3]
[1]
YTG
Year-to-go
[3]
[1]
YTMND
You're The Man Now, Dog
[6]
[5]
YW
You're welcome.
[6]
[5]
YaST
Yet another Setup Tool
[5]
[4]
ZBB
Zero Based Budgeting
[3]
[1]
ZCAV
Zone Constant Angular Velocity
[5]
[4]
ZCS
Zero Code Suppression
[5]
[4]
ZIF
Zero Insertion Force
[5]
[4]
ZIFS
Zero Insertion Force Socket
[5]
[4]
ZIP
ZIP file archive
[5]
[4]
ZISC
Zero Instruction Set Computer
[5]
[4]
ZMA
Zone Multicast Address
[5]
[4]
ZOI
Zero One Infinity
[5]
[4]
ZOMG
An intentional misspelling of the acronym shorthand for "Oh My God" and pronounced "Zoh My God" This version is mainly used in jest or to ridicule people who use abbreviations like OMG and OMFG
[6]
[5]
ZOPA
Zone of Possible Agreement
[3]
[1]
ZOPE
Z Object Publishing Environment
[5]
[4]
ZPL
Z-level Programming Language
[5]
[4]
a/c.
Account
[3]
[1]
agcy.
Agency
[3]
[1]
agt.
Agent
[3]
[1]
assoc.
Associate
[3]
[1]
asst.
Assistant
[3]
[1]
bin
binary
[5]
[4]
bit
binary digit
[5]
[4]
bldg.
Building
[3]
[1]
blog
Also known as web log or an online journal
[6]
[5]
bot
Any type of automated software in chatrooms and web-cataloging software
[6]
[5]
bps
bits per second
[5]
[4]
bump
Increment (for example, C's ++ operator.) or a backronym for "Bring Up My Post"
[6]
[5]
bus.
Business
[3]
[1]
cc
C compiler
[5]
[4]
crapplet
A poorly written computer application
[6]
[5]
crapware
Unwanted software that is often installed with another program
[6]
[5]
crawl
To retrieve a web page along with the hyperlinks that reference it
[6]
[5]
cyber- (prefix)
A term used to connect the subsequent word loosely to the world of computers or the Internet or sex over a computer
[6]
[5]
cyberspace
Virtual reality, the Internet, the World Wide Web, and other kinds of computer systems. Science fiction author William Gibson popularized the term in his novel Neuromancer. Gibson used the word to describe a virtual world of computer networks that his cyberpunk heroes 'jacked into'
[6]
[5]
dev
development
[5]
[4]
disc.
Discount
[3]
[1]
eID
electronic ID card
[5]
[4]
eSATA
external SATA
[5]
[4]
emoticon
Internet
leet
slang
^ p
[1] Barseghyan, L. (2013). On some aspects of Internet slang. Graduate School of Foreign Languages N, 14, 19-31.
[6]
[5]
flamer
Someone who makes inflammatory, abusive or directly offensive comments. Similar to, but not quite the same as an Internet troll.
[6]
[5]
fsck
File System Check
[5]
[4]
gratz
Congratulations
[6]
[5]
handle
Name used in online chat, (AKA nick(name), alias, screen/user name)
[6]
[5]
haxor or H4x0r (1337)
Hacker
[6]
[5]
hit
A request made to the web server, (noun) the results of an Internet search, (verb) loading a Web page. Hits are not equivalent to visitors of a webpage.
[6]
[5]
home page
The website's introduction page, starting point, and guide. The technical term is "index"
[6]
[5]
hot list
A collection of publicly available URLs (World Wide Web site addresses), sometimes available as text files.
[6]
[5]
iBCS
Intel Binary Compatibility Standard
[5]
[4]
iSCSI
Internet Small Computer System Interface
[5]
[4]
iSNS
Internet Storage Name Service
[5]
[4]
inb4
In before... (someone else says or does something)
[6]
[5]
information superhighway
The Internet (AKA: I-way, infobahn)
[6]
[5]
jaggy
aliased computer graphics
[6]
[5]
k or kk
OK
[6]
[5]
kHz
Kilohertz
[5]
[4]
kms
kill myself
[6]
[5]
kthxbye
OK, thanks, goodbye, used either to cut short a conversation or to express displeasure with being cut short
[6]
[5]
l8r
Later, L8R also sometimes abbreviated as L8ER is commonly used in chat rooms and other text based communications as a way of saying good bye
[6]
[5]
lag
Slang term for slow Internet speeds or high Internet latency; Lag is sometimes due to a server problem, but more frequently due to the connection between client and server. A slow or intermittent connection may often be referred to as laggy
[6]
[5]
lamer
A know-nothing, one who is lame.
[6]
[5]
leet
Often spelled as l33t or 1337. Originally short for 'elite'
[6]
[5]
lulz
Corruption of LOL
[6]
[5]
lurker
Someone who reads only but does not write and/or load up anything in a community, group or discussion
[6]
[5]
n0rp
Alternate form of pr0n, intentional misspelling of porn
[6]
[5]
namewaster
person who abandons an account shortly after its creation
[6]
[5]
newbie, newb, n00b
An inexperienced user of a system or game, or an annoying person. Usually a derogatory term for someone inexperienced at a game.
[6]
[5]
ooRexx
Open Object Rexx
[5]
[4]
pip
Percentage in point or Periodic Investment Plan\
[3]
[1]
pog/poggers
An expression of shock or excitement
[6]
[5]
pr0n
Intentional misspelling of porn
[6]
[5]
pwned
Intentional misspelling of owned
[6]
[5]
q/q
Quarter-to-date
[3]
[1]
qWave
Quality Windows Audio/Video Experience
[5]
[4]
rd
remove directory
[5]
[4]
regex
Regular Expression
[5]
[4]
regexp
Regular Expression
[5]
[4]
rehi (or merely re)
Hello again
[6]
[5]
rmdir
remove directory
[5]
[4]
s
TINS: There is no spoon
[6]
[5]
sauce
source, particularly when asking for the source of an image or other posted material online.[1]
[6]
[5]
sbin
superuser binary
[5]
[4]
sbs
Small Business Server
[5]
[4]
sk8/sk8r/sk8er
skate/skater
[6]
[5]
smiley
Another name for emoticons
[6]
[5]
snail mail
Normal paper mail service
[6]
[5]
spider
The program behind a search engine
[6]
[5]
su
superuser
[5]
[4]
tmp
temporary
[5]
[4]
toobs
Internets (refering to the Internet as a series of tubes)
[6]
[5]
tweedler
One who has deep love for all computer related technology and gadgets
[6]
[5]
usr
User System Resources
[5]
[4]
var
variable
[5]
[4]
Volt-ampere reactive (measurement)
[4]
[3]
w.r.t
With Respect To
[3]
[1]
w00t, w00T or WOOT
First two express exuberance, the last is a backronym for the term "We Own the Other Team".
[6]
[5]
wasp
weighted average selling price
[3]
[1]
wk
week
[3]
[1]
wo
work order
[3]
[1]
wrk
work
[3]
[1]
y
English internet slang
[6]
[5]
English glossaries
[6]
[5]
English appendices
[6]
[5]
This page was last edited on 22 December 2024, at 20:07.
[6]
[5]
Definitions and other text are available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy.
[6]
[5]
Privacy policy
[6]
[5]
About Wiktionary
[6]
[5]
Disclaimers
[6]
[5]
Code of Conduct
[6]
[5]
Developers
[6]
[5]
Statistics
[6]
[5]
Cookie statement
[6]
[5]
Mobile view
[6]
[5]
zcyc
Zero Coupon Yield Curve
[3]
[1]
A/A
Air to air TACAN function
[7]
[6]
A/C
Aircraft[1]
[7]
[6]
ACC
Altocumulus castellanus
Cloud type
[7]
[6]
Area Control Centre
[7]
[6]
Area control centre[1]
[7]
[6]
Active clearance control
Turbine engine system
[7]
[6]
Accessory
In gas turbine engine
[7]
[6]
A/D
Aerodrome
[7]
[6]
ACT
Alternative Configuration Tool
[7]
[6]
A/F
Autofeather
[7]
[6]
A/FD
Airport/Facility Directory
[7]
[6]
A/P
Autopilot
[7]
[6]
Airplane (US), Aeroplane (ICAO)
[7]
[6]
AAE
Above aerodrome elevation[1]
In aviation, above aerodrome level (AAL), or above aerodrome elevation (AAE), denotes that an altitude is given above the nearest aerodrome or airport.
[7]
[6]
AAIB
Air Accidents Investigation Branch
United Kingdom
[7]
[6]
AAIM
Aircraft Autonomous Integrity Monitoring
[7]
[6]
AAO
Assumed adverse obstacle
[7]
[6]
AAS
Airport advisory service[1]
[7]
[6]
ACAM
Aircraft continuous airworthiness monitoring
[7]
[6]
ACARS
Aircraft Communications Addressing and Reporting System
[7]
[6]
ACAS
Airborne collision avoidance system
[7]
[6]
ACFT
Aircraft[3]
[7]
[6]
ACI
Airports Council International
[7]
[6]
ACLS
Automatic carrier landing system
Aircraft carrier operations
[7]
[6]
ACMS
Aircraft condition monitoring system
[7]
[6]
ACS1
Airman Certification Standards[4]
FAA pilot testing
[7]
[6]
ACS2
Audio control system
[7]
[6]
ACU1
Air condition unit
[7]
[6]
ACU2
Alternator control unit[2]
Protection from alternator over-voltage.
[7]
[6]
ADA
Advisory area
[7]
[6]
ADAHRS
Air data attitude heading reference system
[7]
[6]
ADD
Acceptable deferred defect
[7]
[6]
ADF
Automatic direction finder
Navigation equipment
[7]
[6]
ADI
Attitude Director Indicator
[7]
[6]
ADIRS
Air Data Inertial Reference System
[7]
[6]
ADIRU
Air Data Inertial Reference Unit
[7]
[6]
ADIZ
Air defense identification zone
[7]
[6]
ADJ
Adjustment
Mechanical term
[7]
[6]
ADM1
Aeronautical decision-making[5]
Piloting term of judgment
[7]
[6]
ADM2
Air data module
[7]
[6]
ADN
Aircraft Data Network
Ethernet derivative for Commercial Aircraft
[7]
[6]
ADS1
Air data system
[7]
[6]
ADS2
Automatic dependent surveillance
[7]
[6]
ADS-A
Automatic dependent surveillance – address
[7]
[6]
ADS-B
Automatic dependent surveillance – broadcast
[7]
[6]
ADS-C
Automatic dependent surveillance – contract
[7]
[6]
ADV
Arbeitsgemeinschaft Deutscher Verkehrsflughäfen
"German Airports Association"
[7]
[6]
AEA
Association of European Airlines
[7]
[6]
AESA
Active electronically scanned array
[7]
[6]
AFCS
automatic flight control system
[7]
[6]
AFD
Autopilot flight director
[7]
[6]
AFDC
Autopilot flight director computer
[7]
[6]
AFDS
Autopilot flight director system
[7]
[6]
AFDX
Avionics Full-Duplex Switched Ethernet
[7]
[6]
AFE
Above field elevation
[7]
[6]
Authority for Expenditure or Authorization for Expenditure
[4]
[3]
AFIS
Airborne flight information system
Also called automatic flight information service
[7]
[6]
AFM
Aircraft flight manual
[7]
[6]
AFS
Aeronautical fixed service
[7]
[6]
AFT
Aft The direction against the aircraft movement
[7]
[6]
AFTN
Aeronautical Fixed Telecommunication Network
[7]
[6]
AGACS
Automatic ground–air communications system
Also known as ATCSS or data link
[7]
[6]
AGB
Accessory gear box
Mainly used in turbine engine
[7]
[6]
AGC
Automatic gain control
[7]
[6]
Automatic generation control
[4]
[3]
AGDL
Air–ground data link
[7]
[6]
AGL
Above ground level
[7]
[6]
AHC
Attitude heading control
[7]
[6]
AHRS
Attitude and heading reference system
[7]
[6]
AIDS
Aircraft integrated data system
[7]
[6]
AIM
Aeronautical Information Manual
[7]
[6]
AIP
Aeronautical Information Publication
[7]
[6]
AIRAC
Aeronautical information regulation and control
[7]
[6]
AIRMET
Air-mission's Meteorological Advisory[6]
In-flight advisory given over 126.7
[7]
[6]
AIS
Aeronautical Information Services
A place mostly for presenting Flight Plans and filing reports
[7]
[6]
AIXM
Aeronautical information exchange model
[7]
[6]
ALC
Automatic level control
[7]
[6]
ALI
Airworthiness Limitation Item
[7]
[6]
ALNA
Airline network architecture
[7]
[6]
ALS
Approach lighting system
[7]
[6]
ALT1
Alternate
[7]
[6]
ALT2
Altimeter
[7]
[6]
ALT3
Altitude
[7]
[6]
ALT hold
Altitude hold mode
[7]
[6]
ALTS
Altitude select
[7]
[6]
ALUM
Aluminum
[7]
[6]
AMC
Acceptable Means of Compliance (EASA)
[7]
[6]
AME
Aircraft Maintenance Engineer
[7]
[6]
Aviation Medical Examiner
[7]
[6]
AMLCD
Active-matrix liquid-crystal display
[7]
[6]
AMM
Aircraft Maintenance Manual
[7]
[6]
AMO
Approved Maintenance Organization
[7]
[6]
AMS
Air management system
[7]
[6]
AMSL
Above mean sea level
[7]
[6]
AMP
Aircraft maintenance program
[7]
[6]
AMT
Aircraft Maintenance Technician
[7]
[6]
ANC
Active noise cancellation
[7]
[6]
AND
Aircraft Nose Down
[7]
[6]
ANPT
Aeronautical national pipe taper
[7]
[6]
ANR
Active noise reduction
[7]
[6]
ANSP1
Air navigation service provider
[7]
[6]
ANSP2
Authorization of Aircraft Network Security Program (FAA)
[7]
[6]
ANSOG
Airport Network Security Operator Guidance (Boeing)
[7]
[6]
A/O
Air oil
In turbine engines
[7]
[6]
AOA
Angle of attack
[7]
[6]
AOC1
Air operator's certificate
[7]
[6]
AOC2
Aeronautical operational control
[7]
[6]
AOG
Aircraft on ground
[7]
[6]
AOM1
Aircraft operations manual
[7]
[6]
AOM2
Airport/aerodrome operating minima
[7]
[6]
APARS
Automatic pressure altitude reporting system
[7]
[6]
APC
Auto pilot computer
[7]
[6]
APIRS
Attitude and positioning inertial reference system
[7]
[6]
APOA
Airport of arrival
[7]
[6]
APOD
Airport of departure
[7]
[6]
APM
Aircraft personality module
[7]
[6]
APP
Appendix
[7]
[6]
Approach Control
ATC
[7]
[6]
APPL
Application
[7]
[6]
APPROX
Approximately
[7]
[6]
APS
Auto pilot system
[7]
[6]
APT
Airport
[7]
[6]
APU
Auxiliary power unit
[7]
[6]
APV
Approach procedure with vertical guidance
Instrumental approach
[7]
[6]
AQP
Advanced Qualification Program
FAA training and testing
[7]
[6]
ARINC
Aeronautical Radio Inc.
[7]
[6]
ARO
Airport reservation office
[7]
[6]
ARTCC
Air route traffic control centers
[7]
[6]
ASAS
Airborne Separation Assurance System
[7]
[6]
ASD
Aircraft situation display
[7]
[6]
ASDA
Accelerate Stop Distance Available
[7]
[6]
ASDE-X
Airport Surface Detection Equipment, Model X
[7]
[6]
ASDL
Aeronautical satellite data link
[7]
[6]
ASI
Airspeed indicator
[7]
[6]
ASL
Above sea level[1]
[7]
[6]
ASLO
Aircraft Security Logging Overview
[7]
[6]
A-SMGCS
Advanced Surface Movement Guidance and Control System
[7]
[6]
ASOS
Automated Surface Observation System
[7]
[6]
assy
Assembly
[7]
[6]
A/S
Anti-Skid
[7]
[6]
ASU
Avionics switching unit
[7]
[6]
A/T
Autothrottle
Also 'AT'
[7]
[6]
A/THR
Autothrust
[7]
[6]
ATC
Air traffic control
[7]
[6]
Available transfer capability
[4]
[3]
ATCC
Air traffic control centre
[7]
[6]
ATCO
Air traffic controller
[7]
[6]
ATCT
Airport traffic control tower
[7]
[6]
ATCRBS
Air traffic control radar beacon system
[7]
[6]
ATCSS
Air traffic control signalling system
[7]
[6]
ATD
Actual time of departure
Equivalent to off-block time[7]
[7]
[6]
ATE
Advanced Technology Engine
[7]
[6]
ATF
Aerodrome traffic frequency
[7]
[6]
ATFM
Air traffic flow management
[7]
[6]
ATIS
Automatic Terminal Information Service
[7]
[6]
ATN
Aeronautical Telecommunication Network
[7]
[6]
ATO
Approved Training Organisation
[7]
[6]
ATPL
Airline Transport Pilot Licence
[7]
[6]
ATQP
Alternative Training and Qualification Programme
[7]
[6]
ATR1 1
Air transportable racking
[7]
[6]
ATR2
Automatic thrust restoration
[7]
[6]
ATS
Air traffic service
[7]
[6]
ATSAW
Airborne traffic situational awareness
[7]
[6]
ATSU
Air traffic services unit
Avionics LRU for ACARS
[7]
[6]
ATT
Attitude
[7]
[6]
ATTCS
Automatic Take-off Thrust Control System
[7]
[6]
AUPRTA
Airplane Upset Prevention & Recovery Training Aid
[7]
[6]
AVAIL
Available
[7]
[6]
Avionics
Aviation electronics
[7]
[6]
AVSA
"Adjust vertical speed adjust"
TCAS Voice command to adjust traffic separation
[7]
[6]
AWACS
Airborne Warning and Control System
Airborne early warning and control (AEW&C) or Boeing E-3 Sentry
[7]
[6]
AWBS
Aviation weather briefing service[6]
Available at designated FSS's
[7]
[6]
AWG
American Wire Gage
The larger the size number, the smaller the wire diameter.
[7]
[6]
AWIS
Aviation weather information service[6]
Available at FSS
[7]
[6]
AWO
All weather operations
[7]
[6]
AWOS
Automated weather observation system[6]
Automated METAR reporting system
[7]
[6]
AWWS
Aviation weather web site[8]
In Canada
[7]
[6]
B RNAV
Basic area navigation
[7]
[6]
BARO
Barometric indication, setting or pressure
[7]
[6]
baro-VNAV
Barometric vertical navigation
[7]
[6]
BCAA
Belgian Civil Aviation Authority
[7]
[6]
BDC
bottom dead centre[1]
Piston engine
[7]
[6]
BDI
Bearing distance indicator
[7]
[6]
BFL
Balanced field length
[7]
[6]
BFR
Biennial flight review
[7]
[6]
BGAN
Broadcast Global Area Network
[7]
[6]
BHP
Brake horsepower[1]
[7]
[6]
BITE
Built-In Test Equipment
[7]
[6]
BL
Butt Line
[7]
[6]
BME
Bridge Mounted Equipment
[7]
[6]
B/P
Blue Print
[7]
[6]
BTV
Brake-to-Vacate System
A new feature introduced by Airbus A380
[7]
[6]
BWC
bird watch condition
[7]
[6]
BVID
Barely Visible Impact Damage
[7]
[6]
BVR
Beyond Visual Range
[7]
[6]
C2
command and control
[7]
[6]
CAA
Civil Aviation Authority
[7]
[6]
Clean Air Act (US)
[4]
[3]
CACTCS
Cabin Air Conditioning and Temperature Control System
(Pronounced "Cactus")
[7]
[6]
CAME
Continuing Airworthiness Management Exposition
[7]
[6]
CAMO
Continuing Airworthiness Management Organisation
[7]
[6]
CAMP
Continuous Airworthiness Maintenance Program (FAA)
[7]
[6]
CAN bus
Controller Area Network
[7]
[6]
CANSO
Civil Air Navigation Services Organisation
[7]
[6]
CAR
civil aviation regulation
[7]
[6]
CARs
civil aviation regulations[9][10]
[7]
[6]
CARS
Canadian Aviation Regulations
[7]
[6]
CAS
calibrated airspeed
[7]
[6]
CASS
Commercial Air Service Standards
[7]
[6]
continuing analysis and surveillance system
[7]
[6]
CAT (I–IIIc)
Operational performance Category
CAT I: Operational performance Category 1
CAT I Enhanced: Allows for lower minimums than CAT I in some cases to CAT 2 minimums
CAT II: Operational performance Category II
CAT IIIa: Operational performance Category IIIa
CAT IIIb: Operational performance Category IIIb
CAT IIIc: Operational performance Category IIIc
[7]
[6]
CAT1
clear air turbulence[1]
[7]
[6]
CAT2
Commercial Air Transport
[7]
[6]
CAVOK
Ceiling and Visibility OK[11]
Visibility is at least 10 kilometres and no clouds below 5000 feet with no forecasted significant weather change such as precipitation.
[7]
[6]
CAVU
Ceiling and Visibility Unlimited
[7]
[6]
CAW
continuing airworthiness (EASA)
[7]
[6]
CB
Cumulonimbus cloud
[7]
[6]
CBT
computer-based training
[7]
[6]
CCRs
closed circuit mixed gas rebreathers
[7]
[6]
constant current regulators
[7]
[6]
CDA
Continuous descent approach
[7]
[6]
CDCCL
critical design configuration control limitation
[7]
[6]
CDI
course deviation indicator
[7]
[6]
CDU
Control Display Unit
[7]
[6]
control/display unit
[7]
[6]
CDFA
Continuous Descent Final Approach
[7]
[6]
CDTI
Cockpit display of traffic information
[7]
[6]
CDL
configuration deviation list
[7]
[6]
CFIT
controlled flight into terrain
[7]
[6]
CFR
Code of Federal Regulations
In the United States
[7]
[6]
CH
Course Heading
[7]
[6]
CHDO
certificate-holding district office (FAA)
[7]
[6]
CHP
Course Heading Panel
[7]
[6]
Combined heat and power
[4]
[3]
CHT
Cylinder Head Temperature (Piston engine aviation)
[7]
[6]
CI
cost index
[7]
[6]
CID
Customer induced damage
[7]
[6]
C/L
Centre line
[7]
[6]
CL
checklist
A flight deck manual, usually part of a Quick Reference Handbook
[7]
[6]
CMC
central maintenance computer
[7]
[6]
CMM
component maintenance manual
[7]
[6]
CMV
converted meteorological visibility
[7]
[6]
CMPA
complex motor-powered aircraft
[7]
[6]
CMU
Communications Management Unit
[7]
[6]
CNS
Communication, navigation and surveillance
[7]
[6]
CNS/ATM
Communication, navigation and surveillance / Air traffic management[12]
[7]
[6]
CODEC
Coder/decoder
[7]
[6]
CofA
Certificate of airworthiness
[7]
[6]
COMM or COM
Communications transceiver, Communications receiver, or Communications radio transmitter
Now, normally: either VHF or UHF; HF communications avionics are usually abbreviated simply HF
[7]
[6]
CORSIA
Carbon Offsetting and Reduction Scheme for International Aviation
[7]
[6]
CPDLC
controller–pilot data link communications
[7]
[6]
CPR
Changed product rule
EASA
[7]
[6]
CRD
Comment-response document (EASA)
Part of rule making process
[7]
[6]
CRES
Corrosion resistant steel
[7]
[6]
CSD
constant speed drive
[7]
[6]
Commission for Sustainable Development (UN)
[4]
[3]
CSDB
Commercial Standard Digital Bus
[7]
[6]
Collins Standard Digital Bus
[7]
[6]
CSN
Cycles since new
Normally measured in FC or EFC for an aircraft, engine or component
[7]
[6]
CSU
constant speed unit
[7]
[6]
CSCT
Configuration Item Signer Crater Tool
Boeing
[7]
[6]
CTAF
common traffic advisory frequency
[7]
[6]
CTR
controlled traffic region/control zone
[7]
[6]
CV/DFDR
Cockpit voice and digital flight data recorder
See Flight recorder
[7]
[6]
CVR
cockpit voice recorder
See Flight recorder
[7]
[6]
CWS
control wheel steering
[7]
[6]
D
Compass Deviation
[7]
[6]
DA/H
decision altitude/height (rel. to THR)
See instrument landing system
[7]
[6]
DA1
Decision Altitude
Precision approach or vertical guidance
[7]
[6]
DA2
density altitude
[7]
[6]
DA3
Drift angle
[7]
[6]
DAH
design approval holder (EASA)
[7]
[6]
DAPs
Downlink of aircraft parameters
[7]
[6]
DBER
damaged beyond economic repair
Hull loss
[7]
[6]
DCDU
Datalink control and display unit
[7]
[6]
DCP
Display control panel
[7]
[6]
DDG
Dispatch deviation guide
https://fsims.faa.gov/WDocs/8400.10%20Air%20Transp%20Ops%20Insp%20Handbk/Volume%204.%20AIRCRAFT%20EQUIPMENT%20AND%20OPERATIONAL%20AUTHORIZATIONS/Vol%204-Chap%204-Sec%203.htm
[7]
[6]
DEFDARS
Digital Expandable Flight Data Acquisition and Recording System
[7]
[6]
DER
departure end of runway
[7]
[6]
Designated Engineering Representative
[7]
[6]
Distributed Energy Resources
[4]
[3]
DEU
display electronic unit
[7]
[6]
DFDR
Digital Flight Data Recorder
See flight recorder
[7]
[6]
DFMC
Dual Frequency Multiple Constellation
[7]
[6]
DG
directional gyro
[7]
[6]
Distributed generation (electricity)
—Directorate-General (EU) (government)
[4]
[3]
DGPS
differential GPS[1]
[7]
[6]
DGR
Dangerous Goods Regulation
[7]
[6]
DH
Decision height
Precision approach, referred to threshold elevation
[7]
[6]
DIA
diameter
[7]
[6]
DLR
datalink recorder
[7]
[6]
German Aerospace Center / Deutsches Zentrum für Luft- und Raumfahrt e.V.
[7]
[6]
DME
distance measuring equipment
[7]
[6]
Designated Mechanic Examiner[2]
A person appointed by the FAA
[7]
[6]
Disturbance Monitoring Equipment
[4]
[3]
DNC
Direct noise canceling
[7]
[6]
DO
design organization
[7]
[6]
Dissolved oxygen
[4]
[3]
DODAR
diagnose, options, decide, act/assign, review
[7]
[6]
DOW
dry operational weight
[7]
[6]
DPU
Display Processor Unit
[7]
[6]
DRMC
Direct Reading Magnetic Compass
[7]
[6]
DTU
Data transfer unit
[7]
[6]
DUATS
Direct User Access Terminal Service
[7]
[6]
DVE
Degraded Visual Environment
[7]
[6]
EA
engineering authorisation
[7]
[6]
Environmental assessment as in an Environmental impact assessment
[4]
[3]
EADI
Electronic Attitude Direction Indicator
[7]
[6]
EASA
European Aviation Safety Agency
[7]
[6]
EAT
expected approach time[1]
[7]
[6]
EBOM
engineering Bill of Material
[7]
[6]
EBU
engine build-up
[7]
[6]
EC
engineering control (also E/C)
[7]
[6]
European Commission
[4]
[3]
ECAM
electronic centralised aircraft monitor
[7]
[6]
ECET
end of civil evening twilight
[7]
[6]
ECR
Engineering Change Request
[7]
[6]
ECU
Engine Control Unit (=EEC)
[7]
[6]
EDR
engineering data record
[7]
[6]
EDTO
extended diversion time operations
[7]
[6]
EEC
electronic engine control
[7]
[6]
EET
estimated elapsed time
[7]
[6]
EFB
electronic flight bag
[7]
[6]
EFC1
Engine Flight Cycle
[7]
[6]
EFC2
expect further clearance
[7]
[6]
EFD
Electronic flight display
[7]
[6]
EFFRA
engine failure flap retraction altitude
[7]
[6]
EFIS
electronic flight instrument system
[7]
[6]
EFH
Engine Flight Hour
[7]
[6]
EFP
engine failure procedure
[7]
[6]
EFTO
engine failure on take-off
[7]
[6]
EFVS
Enhanced flight visual system
[7]
[6]
EGPWS
enhanced ground proximity warning system
[7]
[6]
EGI
Embedded GPS Inertial
[7]
[6]
EGNOS
European Geostationary Navigation Overlay Service
[7]
[6]
EGT
exhaust gas temperature
[7]
[6]
EHM
engine health monitoring
[7]
[6]
EHS
Enhanced surveillance
[7]
[6]
EHSI
Electronic Horizontal Situation Indicator
[7]
[6]
EICAS
engine-indicating and crew-alerting system
[7]
[6]
EIS
Electronic Instrument System
[7]
[6]
Environmental Impact Statement (US)
[4]
[3]
E-LSA
experimental light-sport aircraft
[7]
[6]
ELAC
elevator and aileron computer
[7]
[6]
ELOS
Equivalent Level of Safety
[7]
[6]
ELT
emergency locator transmitter
[7]
[6]
EMAS
engineered materials arresting system
[7]
[6]
EMDP
electric motor driven pump
[7]
[6]
ENC
Electronic noise canceling
[7]
[6]
ENCASIA
European Network of Civil Aviation Safety Investigation Authorities
[7]
[6]
ENG
engine
[7]
[6]
ENR
Electronic noise reduction
[7]
[6]
EOBT
estimated off-blocktime
[7]
[6]
EPA
European part approval (EASA)
[7]
[6]
United States Environmental Protection Agency
[4]
[3]
EPR
engine pressure ratio
[7]
[6]
EPU
Emergency Power Unit
[7]
[6]
ERAM
En Route Automation Modernization
[7]
[6]
ESA
emergency safe altitude
[7]
[6]
ETE
estimated time en route[1]
[7]
[6]
ETOPS
Extended-range Twin-engine Operation Performance Standards
[7]
[6]
ETSO
European Technical Standard Order, issued by EASA; see TSO
[7]
[6]
European Transmission System Operators association
[4]
[3]
EUROCAE
European Organisation for Civil Aviation Equipment
[7]
[6]
EVAS
Emergency Vision Assurance System
[7]
[6]
EVSI
Enhanced Vision Systems Instrument
[7]
[6]
EVS
Enhanced Vision Systems
[7]
[6]
EW
Empty Weight
[7]
[6]
FAA
Federal Aviation Administration
U.S. Department of Transportation agency
[7]
[6]
FAC
Final approach course
[7]
[6]
Flight Augmentation computer
Avionics
[7]
[6]
Fuel Adjustment Clause
[4]
[3]
FACF
final approach course fix
Point at which the final approach descent is begun
[7]
[6]
FADEC
full authority digital engine control
Engine equipment
[7]
[6]
FAF
final approach fix
[7]
[6]
first available flight
Airline operations
[7]
[6]
FALS
full approach lighting system
[7]
[6]
FANS
Future Air Navigation System
Avionics
[7]
[6]
FAR
Federal Aviation Regulation
FAA regulation
[7]
[6]
FAR/AIM
Federal Aviation Regulation /Aeronautical Information Manual
Bundle of FAA regulations and Aeronautical Manual[13]
[7]
[6]
FAROS
final approach runway occupancy signal
[7]
[6]
FAS
final approach segment
[7]
[6]
FATO
final approach and take off
[7]
[6]
FB
Winds aloft
World Meteorological Organization abbrev. see also FD
[7]
[6]
FBO
fixed-base operator
Airfield operations
[7]
[6]
FBS
fixed base simulator
Flight crew training
[7]
[6]
FBW
fly-by-wire
[7]
[6]
FCC
Flight Control Computer
[7]
[6]
FC
flight crew
[7]
[6]
FCF
functional flight check
Check functionality after maintenance
[7]
[6]
FCMC
Fuel Control & Monitoring Computer
[7]
[6]
FCOM
flight crew operating manual
Aircraft operations
[7]
[6]
FCTM
flight crew training manual
[7]
[6]
FCU
fuel control unit
In turbine engines
[7]
[6]
FD
flight director
Avionics
[7]
[6]
upper winds and temperature forecast[1]
US and Canada abbrev. See also FB
[7]
[6]
FDAU
flight-data acquisition unit
[7]
[6]
FDPS
flight plan data processing system
Flight planning
[7]
[6]
FDR
flight data recorder
Avionics. Also known as 'black box'.
[7]
[6]
FDRS
flight data recorder system
Avionics
[7]
[6]
FDTL
flight duty time limitations
[7]
[6]
FDU
flux detector unit
[7]
[6]
FEP
final end point
[7]
[6]
FF
fuel flow
[7]
[6]
FFDZ
free fall drop zone (parachutists)
[7]
[6]
FG
Flight Guidance
[7]
[6]
Fuel Gas
[4]
[3]
FIC
flight information centre
[7]
[6]
FIDO
Fog Investigation and Dispersal Operation
Airfield operations
[7]
[6]
FIKI
Flight Into Known Icing
Aircraft operations
[7]
[6]
FIR
flight information region
ATC
[7]
[6]
FIS
Federal Inspection Services
[7]
[6]
FIS-B
Flight information services – broadcast
[7]
[6]
FISE
flight information service enroute
[7]
[6]
FLIR
Forward-looking infra-red
[7]
[6]
FLTA
Forward-looking terrain avoidance
[7]
[6]
FM
frequency modulation
Example: FM immunity
[7]
[6]
FMA
flight mode annunciator
Equipment
[7]
[6]
FMGC
Flight management and guidance computer
Avionics. Also FMGS: Flight Management & Guidance System
[7]
[6]
FMS
flight management system
Avionics
[7]
[6]
FO
first officer
Flight crew
[7]
[6]
FOD
foreign object damage
Airfield operations
[7]
[6]
FOO
flight operations officer
Airline employee
[7]
[6]
FOQA
flight operational quality assurance
[7]
[6]
FPA
flight path angle
[7]
[6]
Federal Power Act (US)
[4]
[3]
FPL
filed flight plan
ATC
[7]
[6]
FPM
feet per minute
[7]
[6]
FQIS
Fuel Quantity Indication System
[7]
[6]
FREQ
Frequency
[7]
[6]
FSDO
Flight Standards District Office (FAA)
[7]
[6]
FSIMS
Flight Standards Information Management System (FAA)
[7]
[6]
FSS
flight service station
[7]
[6]
FTD
flight training device
Flight crew training
[7]
[6]
FVU
flux valve unit
Equipment
[7]
[6]
FYDS
Flight director / yaw damper system
[7]
[6]
GA
general aviation
[7]
[6]
G/A or GA
go-around
Aborted landing procedure
[7]
[6]
GAST
GBAS Approach Service Type
[7]
[6]
GBAS
Ground based augmentation system
[7]
[6]
GCAS
Ground collision avoidance system
[7]
[6]
GBST
ground-based, software tool
Airfield operations
[7]
[6]
GCA
Ground-controlled approach
Airfield operations
[7]
[6]
GCU
generator control unit
[7]
[6]
GDOP
Geometric dilution of precision
[7]
[6]
GEA
Ground effect area
[7]
[6]
GHz
Gigahertz
[7]
[6]
GLOC
g-induced loss of consciousness
"g" Is acceleration relevant to the acceleration caused by gravity
[7]
[6]
GLONASS
Global Navigation Satellite System
Or GNSS
[7]
[6]
GLNS
GPS Landing and Navigation System
[7]
[6]
GLNU
GPS Landing and Navigation Unit
[7]
[6]
GLS
GBAS Landing System
[7]
[6]
GLU
GPS landing unit
[7]
[6]
GMM
general maintenance manual
[7]
[6]
GMT
Greenwich Mean Time
[7]
[6]
GND
ground
Airfield operations
[7]
[6]
GPP
general practices and procedures
[7]
[6]
GPWS
ground proximity warning system
Avionics
[7]
[6]
G/S
glideslope
Avionics
[7]
[6]
GS
groundspeed
[7]
[6]
GSE
ground support equipment
Aerospace ground equipment
[7]
[6]
GSPT
Gross shop processing time
[7]
[6]
GSPU
Glider snatch pick-up
[7]
[6]
GUMPS
Gas, Undercarriage, Mixture, Propeller, Seat belts/Switches
Mental checklist before landing
[7]
[6]
H
Heavy
Wake turbulence category
[7]
[6]
High
[7]
[6]
HAA
Height above airport
[7]
[6]
HAT
Height Above Touchdown
[7]
[6]
HAZMAT
Hazardous Material
[7]
[6]
HBCS
High Bandwidth Connectivity System
[7]
[6]
HDB
Horizontal Deviation Bar (GS)
[7]
[6]
HDG
Heading
Navigation
[7]
[6]
HDG SEL
Heading select
Navigation
[7]
[6]
HDI
Horizontal Deviation Indicator
[7]
[6]
HDOP
Horizontal dilution of precision
[7]
[6]
HFE
Human Factors Engineering[14]
[7]
[6]
HFES
Human Factors and Ergonomics Society
U.S.-based nonprofit organisation
[7]
[6]
"Hg
Inch of Mercury
Symbol for unit of pressure
[7]
[6]
HHLD
Heading hold
Navigation
[7]
[6]
HIGE
hover in ground effect
Helicopter operations
[7]
[6]
HIRL
High Intensity Runway lighting
Airfield operations
[7]
[6]
HIRO
High Intensity Runway Operation
Airfield operations
[7]
[6]
HIRTA
High Intensity Radio Transmission Area
[7]
[6]
HIWAS
Hazardous Inflight Weather Advisory Service
[7]
[6]
HL
Height loss
[7]
[6]
HLD
hold
Maintain same altitude or speed or direction
[7]
[6]
HMG
hydraulic motor generator
[7]
[6]
HMD
Helmet-mounted display
[7]
[6]
HMU
hydro-mechanical unit
In turbine engine
[7]
[6]
HOGE
hover out of ground effect
Helicopter operations
[7]
[6]
HOTAS
Hands On Throttle And Stick
[7]
[6]
HPA
human-powered aircraft
Aircraft type
[7]
[6]
HPR
High Pressure Rotor
[7]
[6]
HPT
high pressure turbine
In turbine engines
[7]
[6]
HPTACC
high pressure turbine active clearance control
Mainly used in turbofan engines
[7]
[6]
HSD
High-speed data
[7]
[6]
HSI
horizontal situation indicator
Avionics
[7]
[6]
HSL
Heading select
[7]
[6]
HUD
head-up display
Avionics
[7]
[6]
HUM
Human Remains
[7]
[6]
HUMS
Health and usage monitoring systems
[7]
[6]
HW
headwind
[7]
[6]
HYD
hydraulic
Aircraft equipment
[7]
[6]
HYDIM
hydraulic interface module
[7]
[6]
IAC
instrument approach chart
[7]
[6]
IAF
initial approach fix
[7]
[6]
IAN
Integrated Approach Navigation
IAN approaches provide the functions, indications and alerting features similar to an ILS approach (B737 FCTM)
[7]
[6]
IAP
instrument approach procedure
[7]
[6]
IATA
International Air Transport Association
[7]
[6]
ICA
Instructions for Continuous Airworthiness
[7]
[6]
ICAO
International Civil Aviation Organization
[7]
[6]
ICAS
International Council of the Aeronautical Sciences
[7]
[6]
ICD
interface control document
[7]
[6]
ICO
idle cut-off
[7]
[6]
ICTS
ice-contaminated tailplane stall
[7]
[6]
ID
identify/identification or identifier
[7]
[6]
IDENT
identify/identifier
[7]
[6]
IDG
integrated drive generator
Combination of a CSD and generator in a single case
[7]
[6]
IDT
identify
XPDR
[7]
[6]
IEPR
integrated engine pressure ratio
[7]
[6]
IETM
interactive electronic technical manual
[7]
[6]
IF
intermediate approach fix
Instrumental approach
[7]
[6]
IFA
International Federation of Airworthiness
[7]
[6]
IFATCA
International Federation of Air Traffic Controllers' Associations
[7]
[6]
IFE
in-flight entertainment
[7]
[6]
IFF
identification friend or foe
[7]
[6]
IFICS
integrated flight instrument and control system
British Aircraft Corporation, now British Aerospace
[7]
[6]
IFLD
In-flight Landing Distance
Airbus term
[7]
[6]
IFP
instrument flight procedure
[7]
[6]
IFR
instrument flight rules
[7]
[6]
IFSD
in-flight shutdown
[7]
[6]
IGV
inlet guide vane
[7]
[6]
ILS
instrument landing system
[7]
[6]
IMC
instrument meteorological conditions
[7]
[6]
IML
inside mold line
[7]
[6]
IND
indicator
[7]
[6]
InHg
inch of mercury
[7]
[6]
INS
inertial navigation system
[7]
[6]
IRT
instrument rating test
[7]
[6]
IRU
inertial reference unit
[7]
[6]
IRVR
instrumented runway visual range
[7]
[6]
ISFD
integrated standby flight display
[7]
[6]
ISIS
integrated standby instrument system
[7]
[6]
ITAR
International Traffic in Arms Regulations
[7]
[6]
IVSI
instantaneous vertical speed indicator
[7]
[6]
JAA
Joint Aviation Authorities
[7]
[6]
JAR
Joint Aviation Requirements
[7]
[6]
JTIDS
Joint Tactical Information Distribution System
[7]
[6]
KCAS
knots calibrated airspeed
[7]
[6]
KIAS
knots indicated airspeed
[7]
[6]
KRE
key risk element
[7]
[6]
KTAS
knots true airspeed
[7]
[6]
L
Light
Wake turbulence category
[7]
[6]
LAAS
Local Area Augmentation System
[7]
[6]
LADGPS
Local Area Differential GPS
[7]
[6]
LAHSO
Land And Hold Short Operations
[7]
[6]
LAME
licensed aircraft maintenance engineer
[7]
[6]
LAT
large air tanker
A class of waterbomber
[7]
[6]
LCC
low-cost carrier
[7]
[6]
LCG
load classification group
[7]
[6]
LCN
load classification number
[7]
[6]
LDA
landing distance available
[7]
[6]
localizer type directional aid
[7]
[6]
LDGPS
local area differential global positioning satellite
[7]
[6]
LDR
landing distance required
[7]
[6]
LHO
live human organs
[7]
[6]
LHS
left hand seat
Jargon for captain
[7]
[6]
LIFR
Low Instrument Flight Rules
ceiling < 500 ft and/or visibility < 1 sm
[7]
[6]
LIR
Loading Instruction Report
[7]
[6]
LKP
last known position
[7]
[6]
LLP
Life Limited Part
EASA, ICAO
[7]
[6]
LLZ
localizer
ILS approach
[7]
[6]
LMM
Locator middle marker
[7]
[6]
LNAV
lateral navigation
[7]
[6]
LOA
letter of authorization
FAA
[7]
[6]
LOCI
loss of control inflight
[7]
[6]
LOFT
line-oriented flight training
[7]
[6]
LOM
limitation of movement
[7]
[6]
locator outer marker
[7]
[6]
LOPA
Location of Passenger Accommodations
[7]
[6]
Layer of Protection Analysis
[4]
[3]
LORAN
Long-range navigation
[7]
[6]
LOTC
loss of thrust control
[7]
[6]
LPR
Low Pressure Rotor
[7]
[6]
LPTACC
low pressure turbine active clearance control
Mainly used in turbofan engines
[7]
[6]
LPV
localizer performance with vertical guidance
[7]
[6]
LRC
long range cruise
[7]
[6]
LSAP
loadable software aircraft part (EASA)
Introduced in RMP for technical records
[7]
[6]
LSAS
longitudinal stability augmentation system
[7]
[6]
LTC
line training captain
[7]
[6]
LTP
landing threshold point
[7]
[6]
LVP
low visibility procedures
Designated state of operations at aerodromes where instrument approaches and low-visibility takeoff procedures are used during inclement weather
[7]
[6]
LW
landing weight
[7]
[6]
LX
Lightning
[7]
[6]
LZ
landing zone
[7]
[6]
M
medium
Wake turbulence category
[7]
[6]
MAHF
Missed Approach Holding Fix
Used in RNAV
[7]
[6]
MANAB
Manual of Word Abbreviations[15]
Used in Canada
[7]
[6]
MAP
manifold absolute pressure
[7]
[6]
missed approach point
Or: MAPt. Instrument approach.
[7]
[6]
MAPS
Minimum Aviation Performance Standards
[7]
[6]
MATS
Manual of Air Traffic Services
[7]
[6]
MBC
Main Base Check
[7]
[6]
MCBF
Mean cycles between failures
[7]
[6]
MCC
Multi-crew cooperation
[7]
[6]
MCDU
multifunction control display unit
[7]
[6]
multi control display unit
[7]
[6]
MCH
Manufacturer Certificate Holder
TCCA; see also PAH and POA
[7]
[6]
MDDR
maintenance deferred defect record
[7]
[6]
MDH
minimum descent height
Or: minimum decision height. Non-precision approach.
[7]
[6]
MEA
Minimum En-route Altitude
[7]
[6]
MEDEVAC
medical evacuation
[7]
[6]
MEF
maximum elevation figure
[7]
[6]
modified energy factor (clothes washers)
[4]
[3]
MMEL
master minimum equipment list
[7]
[6]
MEL
minimum equipment list
[7]
[6]
MEP
multi-engine piston
[7]
[6]
METAR
meteorological aerodrome report
[7]
[6]
MFD
multi-function display
[7]
[6]
MFDS
multi-function display system
[7]
[6]
MFRA
minimum flap retraction altitude
[7]
[6]
MH
magnetic heading
[7]
[6]
MIDS
Multifunctional information distribution system
[7]
[6]
MIJI
Meaconing, intrusion, jamming, and interference[16]
[7]
[6]
MILSPEC
Military specification
[7]
[6]
MKP
Multi-function Keypad
[7]
[6]
MKR
Marker beacon
[7]
[6]
MLDW
maximum landing weight
[7]
[6]
MLG
Main Landing Gear
[7]
[6]
MLS
microwave landing system
[7]
[6]
MM
middle marker
[7]
[6]
Used to denote million in gas usage
[4]
[3]
MMD
Moving map display
[7]
[6]
MNPS
Minimum navigation performance specifications
[7]
[6]
MOA
Military operations area
[7]
[6]
MOCA
Minimum Obstacle Clearance Altitude
[7]
[6]
Mode A
Transponder pulse-code reporting
[7]
[6]
Mode B
Transponder code and altitude reporting
[7]
[6]
Mode C
Transponder code, altitude, and TCAS reporting
[7]
[6]
MOE
maintenance organisation exposition
[7]
[6]
MOPS
Minimum Operational Performance Standard
[7]
[6]
MORA
Minimum Off Route Altitude
[7]
[6]
MOSArt
Modular Open System Architecture
[7]
[6]
MP
manifold pressure
[7]
[6]
MRB
Material Review Board
[7]
[6]
MROT
Minimum Runway Occupancy Time
[7]
[6]
MRW
maximum ramp weight
[7]
[6]
MSD
Minimum Stabilization Distance
[7]
[6]
MSDS
Material Safety Data Sheet
[7]
[6]
MSG
Message
[7]
[6]
MSL
mean sea level
[7]
[6]
MSLW
Max. Structural Landing Weight
[7]
[6]
MSP
Modes S-Specific Protocol
[7]
[6]
MSSS
Mode S-Specific Services
[7]
[6]
MSTOW
Max. Structural Take-off Weight
[7]
[6]
MSZFW
Max. Structural Zero Fuel Weight
[7]
[6]
MTBSV
Mean time between shop visit
[7]
[6]
MTBUR
Mean time between unscheduled removals
[7]
[6]
MTOW
maximum take-off weight
[7]
[6]
MTTF
Mean time to failure
[7]
[6]
MVA
Minimum Vectoring Altitude
[7]
[6]
Megavolt amperes (one million volt amperes)
[4]
[3]
MVFR
Marginal visual flight rules
ceiling 1000-3000′ and/or visibility 3-5 miles
[7]
[6]
MZFW
Maximum Zero Fuel Weight
[7]
[6]
NADP
noise abatement departure procedure
[7]
[6]
Navaid
Navigational aid
Or: aid to navigation (ATON)
[7]
[6]
NAVCOMM
Combination navigation and communications equipment
Or: NAV/COM or NAV-COM. normally VHF navigation receiver integrated with VHF communications transceiver
[7]
[6]
NAVSTAR-GPS
Navigation Satellite Timing And Ranging
The space-borne or satellite navigation system
[7]
[6]
NCAT
National Center for Aviation Training
US educational facility
[7]
[6]
NCATT
National Center for Aircraft Technician Training
US educational facility
[7]
[6]
ND
Navigation display
[7]
[6]
NDB
non-directional beacon
[7]
[6]
NDT
non-destructive testing
[7]
[6]
NFF
No fault found
Or: no trouble found (NTF) or no defect found (NDF)
[7]
[6]
NGS
nitrogen generation system
[7]
[6]
NHA
next higher assembly
[7]
[6]
NLG
nose landing gear
[7]
[6]
NLR
Netherlands Aerospace Research Centre
[7]
[6]
NNC
non-normal checklist
[7]
[6]
NNM
non-normal maneuver (Boeing QRH - 737 Flight Crew Operations Manual)
[7]
[6]
NORAD
North American Aerospace Defense Command
US-Canadian military security agency
[7]
[6]
NORDO
no radio
[7]
[6]
NOTAM
Notice to air missions[17]
[7]
[6]
NOTAR
no tail rotor[2]
Helicopter control system
[7]
[6]
NOZ
Normal Operating Zone
Parallel runways operation
[7]
[6]
NPRM
notice of proposed rulemaking
FAA
[7]
[6]
NRR
noise reduction rating
hearing protector attenuation
[7]
[6]
NRTC
nonroutine task card
[7]
[6]
NVD
Night-vision device
Or: Night-vision goggles (NVG)
[7]
[6]
NTSB
National Transportation Safety Board
U.S. governmental agency
[7]
[6]
NTZ
no-transgression zone
Parallel runways operation
[7]
[6]
N#
compressor speed[1]
N1, N2, etc. refers to the specific compressor spool (in the order that air passes over them). (See: Jet engine)
[7]
[6]
Ng
gas generator speed[1]
[7]
[6]
Nh
high rotor speed[1]
[7]
[6]
Np
power turbine speed[1]
[7]
[6]
Nr
rotor speed (helicopters)
Np and Nr are typically shown on the same gauge with two needles, both expressed in percent, so that the pilot can tell if the power turbine is driving the rotor or if it is freewheeling.
[7]
[6]
OAS
Obstacle Assessment Surface
[7]
[6]
OBE
overcome by events
[7]
[6]
OBI
Omnibearing indicator
See CDI
[7]
[6]
OBS
omni-bearing selector
[7]
[6]
OCA
obstacle clearance altitude
[7]
[6]
OCC
Operations control center
[7]
[6]
OCCM
on condition / condition monitored components
[7]
[6]
OCH
obstacle clearance height
[7]
[6]
OEI
one engine inoperative
[7]
[6]
OFZ
Obstacle Free Zone
[7]
[6]
OGV
outlet guide vane
[7]
[6]
OHM
overhaul manual
[7]
[6]
OIS
obstacle identification surface
Instrumental procedures
[7]
[6]
Operational Information System
[7]
[6]
OLD
Operational Landing Distance
Boeing term
[7]
[6]
OM
outer marker
[7]
[6]
OML
outer mold line
[7]
[6]
ONS
onboard network system
[7]
[6]
ONAT
Onboard Network Access Terminal
[7]
[6]
O/R
On Request
[7]
[6]
OTS
out of service
[7]
[6]
OPC
operational check
[7]
[6]
OPS/CHK
operational check
[7]
[6]
OW
operational weight
[7]
[6]
OWE/OEW
Operating Weight Empty/Operating empty weight
[7]
[6]
P
(as a prefix:) prohibited airspace
[7]
[6]
PAEW
Personnel and equipment working
[7]
[6]
PAH
production approval holder
FAA; see also POA and MCH
[7]
[6]
PAL
Pilot Activated Lighting
[7]
[6]
PANS-OPS
procedures for air navigation services – aircraft operations
[7]
[6]
PAOG
Pre Aircraft on Ground
[7]
[6]
PAPI
precision approach path indicator
[7]
[6]
PAR
precision approach radar
[7]
[6]
PATWAS
Pilot's Automatic Telephone Weather Answering Service[6]
[7]
[6]
PAX
passenger
[7]
[6]
PBCS
performance-based communication and surveillance
[7]
[6]
PBD
place bearing distance
RNAV waypoint
[7]
[6]
PBE
Protective Breathing Equipment
[7]
[6]
PBN
Performance-Based Navigation
[7]
[6]
P-Code
GPS precision code
[7]
[6]
PCN
pavement classification number
[7]
[6]
PDAS
public domain aeronautical software
[7]
[6]
PDC
Pre-Departure Clearance
[7]
[6]
Phasor data concentrator. See description in phasor measurement unit article. (electricity)
[4]
[3]
PDG
procedure design gradient
[7]
[6]
PDM
pilot decision making
[7]
[6]
PDOP
Position dilution of precision
[7]
[6]
PDU
power drive unit
Flap actuation
[7]
[6]
PET
point of equal time
[7]
[6]
PESA
Passive electronically scanned array
[7]
[6]
PF
pilot flying
[7]
[6]
PFAF
precision final approach fix
[7]
[6]
PFD
primary flight display
Or: primary flight director
[7]
[6]
Probability of Failure on Demand
[4]
[3]
PICUS
Pilot In Command, under supervision[18]
[7]
[6]
PIP
performance improvement package
[7]
[6]
PIREP
Pilot Report
[7]
[6]
PJA
Parachute Jumping Area
[7]
[6]
PJE
Parachute jumping exercise
[7]
[6]
PMA
Parts Manufacturer Approval
[7]
[6]
Power Marketing Administration or Fed. Power Marketing Agency (US) (electricity)
[4]
[3]
PMI
Principal Maintenance Inspector
[7]
[6]
PMC
power management computer
Turbine engines
[7]
[6]
PMG
permanent magnet generator
[7]
[6]
PN
part number
Also P/N
[7]
[6]
PND
primary navigation display
[7]
[6]
PNF
pilot not flying
[7]
[6]
PNR
passive noise reduction
[7]
[6]
Point of No Return
[7]
[6]
POB
persons on board
[7]
[6]
POF
Phase of flight
[7]
[6]
Principles Of Flight
[7]
[6]
PPR
prior permission required
[7]
[6]
Potential peak reduction
[4]
[3]
PRA
Pre-recorded announcement
[7]
[6]
PSAA
Product support and assurance agreement
[7]
[6]
PSEU
Proximity Switch Electronic Unit / B737
[7]
[6]
PSR
point of safe return
[7]
[6]
power supply reset
[7]
[6]
primary surveillance radar
[7]
[6]
PTCU
power transfer Control unit
[7]
[6]
PTF
permit to fly
[7]
[6]
PTOL
point take-off and landing
[7]
[6]
PTR
Pilot Training Record
[7]
[6]
PTT
push to talk
[7]
[6]
PYLD
payload
[7]
[6]
QAR
quick access recorder
[7]
[6]
QCM
quality and compliance monitoring
[7]
[6]
QEC
quick engine change
[7]
[6]
QFE
the Q-code for: Atmospheric pressure at aerodrome elevation (or at runway threshold)
[7]
[6]
QNE
the Q-code for pressure altitude
[7]
[6]
QNH
the Q-code for: Altimeter sub-scale setting to obtain elevation when on the ground, i.e. altitude above MSL
[7]
[6]
QRA
quick reaction alert
[7]
[6]
Quantitative Risk Assessment
[4]
[3]
QRH
quick reference handbook
[7]
[6]
QTOL
quiet take-off and landing[19]
[7]
[6]
R
(as a prefix:) restricted airspace
[7]
[6]
RA
radio altitude or radar altimeter
[7]
[6]
resolution advisory
In the context of TCAS
[7]
[6]
Risk Assessment
[4]
[3]
RAAS
Runway Awareness and Advisory System
[7]
[6]
remote airport advisory service
[7]
[6]
Rad Alt
Radio Altitude
[7]
[6]
Radar
RAdio Detection And Ranging
[7]
[6]
RAI
Radio altimeter indicator
[7]
[6]
RAIM
Receiver Autonomous Integrity Monitoring
Or: remote autonomous integrity monitoring
[7]
[6]
RALT
Radar or radio altimeter
[7]
[6]
RAREPS
Weather Radar Reports[6]
Provided by Air Traffic Controllers
[7]
[6]
RA(T)
restricted area (temporary)
[7]
[6]
RAT
ram air turbine
[7]
[6]
RCO
remote communications outlet
[7]
[6]
RCR
Reverse current relay
[7]
[6]
RCVR
Radio receiver
[7]
[6]
RDH
reference datum height
For instrument landing system (ILS)
[7]
[6]
RDMI
Radio distance magnetic indicator
[7]
[6]
RDR
Radar
[7]
[6]
REF
Reference
[7]
[6]
REIL
Runway end identifier lights
[7]
[6]
REL
Relative
[7]
[6]
REO
Repair engineering order
[7]
[6]
RESA
runway end safety area
[7]
[6]
RFF
rescue and fire fighting
[7]
[6]
RHS
right hand seat
Jargon for first officer
[7]
[6]
RHSM
reduced horizontal separation minimal
[7]
[6]
RII
required inspection items
[7]
[6]
RLG
Ring laser gyroscope
[7]
[6]
RLTC
Remaining Life Time Cycle
Counter to the limiter especially for LLPs in engines
[7]
[6]
RLY
Relay
[7]
[6]
RMP
Radio Management Panel
[7]
[6]
RMT
rule making task (EASA)
[7]
[6]
RNAV
area navigation
[7]
[6]
RNG
Range (aeronautics)
[7]
[6]
RNP
required navigation performance
[7]
[6]
RoC
Rate of climb
[7]
[6]
RoD
Rate of descent
Or: sink rate
[7]
[6]
RPAS
Remotely Piloted Aircraft System
[7]
[6]
RPL
Recreational Pilot Licence
[7]
[6]
repetitive flight planning
[7]
[6]
RPT
regular public transport
[7]
[6]
RQR
Required
[7]
[6]
RSR
en-route surveillance radar
[7]
[6]
RT
radiotelephony
[7]
[6]
RTB
return to base
[7]
[6]
RTO
Rejected takeoff
[7]
[6]
Regional transmission organization (US)
[4]
[3]
RTOL
Reduced take-off and landing
[7]
[6]
RTOW
regulatory take-off weight
[7]
[6]
RVDT
rotary variable differential transformer
In a turbine engine
[7]
[6]
RVR
runway visual range
[7]
[6]
RVSM
reduced vertical separation minima
[7]
[6]
RW
ramp weight
[7]
[6]
RWY
runway
[7]
[6]
RX
Radio receiver
[7]
[6]
SAF
Sustainable aviation fuel
[7]
[6]
SAIL
Specific assurance and integrity level
[7]
[6]
SAR
Search and rescue
[7]
[6]
Smart ACMS Recorder
[7]
[6]
Surveillance Approach Radar
[7]
[6]
SAT
Static Air Temperature
Or: Outside air temperature (OAT)
[7]
[6]
SATCOM
Satellite communication
[7]
[6]
SATNAV
Satellite navigation
[7]
[6]
SB
service bulletin
[7]
[6]
SBAAS
Satellite-Based Augmentation System
Or: SBAS
[7]
[6]
SC
special condition
[7]
[6]
shading coefficient (windows)
[4]
[3]
SCAP
Standard Computerized Airplane Performance
[7]
[6]
SCCM
senior cabin crew member
[7]
[6]
SDF
Simplified directional facility
[7]
[6]
SDU
Satellite data unit
[7]
[6]
SELCAL
Selective calling
[7]
[6]
SEP
Safety and Emergency Procedures
[7]
[6]
single-engine piston
[7]
[6]
SESAR
Single European Sky ATM Research
[7]
[6]
SESMA
Special Event Search and Master Analysis
[7]
[6]
SFCC
Slat Flap Control Computer
[7]
[6]
SFO
Senior First Officer
[7]
[6]
SFP
Short Field Performance
B737 Enhancement program for landing in short runways
[7]
[6]
SFOC
Special Flight Operating Certificate
[7]
[6]
SID
standard instrument departure
[7]
[6]
SIGMET
Significant Meteorological Information
[7]
[6]
SIU
Satellite interface unit
[7]
[6]
SLPC
single lever power control
[7]
[6]
SM
service manual
[7]
[6]
SMM
safety management document
ICAO
[7]
[6]
SMOH
Since major overhaul
[7]
[6]
SMR
surface movement radar
[7]
[6]
SN
serial number
[7]
[6]
SNR
signal-to-noise ratio
[7]
[6]
SOC
start of climb at missed approach
[7]
[6]
SODPRO
simultaneous opposite direction parallel runway operations
[7]
[6]
SOF
special operations forces
Military unit
[7]
[6]
SOG
speed over ground
Same as ground speed
[7]
[6]
Special Operations Group
[7]
[6]
SPKR
Speaker
[7]
[6]
SPS
Stall Protection System
[7]
[6]
Special Protection System
[4]
[3]
SQ
Squelch
Or: SQL
[7]
[6]
SR
sunrise
[7]
[6]
Speculative resources For example, regarding uranium deposits. (nuclear)
[4]
[3]
SRM
structural repair manual
[7]
[6]
SRS
Speed Reference System
[7]
[6]
Safety Requirement Specification
[4]
[3]
SS
sunset
[7]
[6]
SSCV/DR
Solid-state cockpit voice/data recorder
See flight recorder
[7]
[6]
SSCVR
Solid-state cockpit voice recorder
See flight recorder
[7]
[6]
SSFDR
Solid-state flight data recorder
See flight recorder
[7]
[6]
STAR
standard terminal arrival route
[7]
[6]
STARS
Standard Terminal Automation Replacement System
[7]
[6]
STC
supplemental type certificate
[7]
[6]
STCA
Short-Term Conflict Alert
[7]
[6]
STOL
short take-off and landing[1]
[7]
[6]
STS
speed trim system
[7]
[6]
SVFR
Special visual flight rules
[7]
[6]
SVGS
Synthetic vision guidance system
[7]
[6]
TA
traffic advisory
See TCAS
[7]
[6]
TAA
terminal arrival altitude
[7]
[6]
terminal arrival area
[7]
[6]
TAC
thrust asymmetry compensation
[7]
[6]
TACAN
tactical air navigation (system)
[7]
[6]
Tach
Tachometer
[7]
[6]
TAD
Terrain awareness display
[7]
[6]
TAF
terminal aerodrome forecast
Or: Terminal area forecast.
[7]
[6]
TAI
thermal anti-ice
[7]
[6]
TALPA
Takeoff and Landing Performance Assessment Aviation Rules Committee
[7]
[6]
TAM
total airport management
[7]
[6]
TAR
terminal approach radar
[7]
[6]
TAS
true airspeed
[7]
[6]
TAT
total air temperature
Or: true air temperature
[7]
[6]
TAWS
terrain awareness and warning system
[7]
[6]
TBO
time between overhauls
Or: time before overhaul
[7]
[6]
TBV
transient bleed valve
In turbine engines
[7]
[6]
TC
Transport Canada
[7]
[6]
towering cumulus
[7]
[6]
turn coordinator
[7]
[6]
True Course
[7]
[6]
type certificate
[7]
[6]
TCA
terminal control area (USA/Canada)
Europe: terminal manoeuvring area (TMA)
[7]
[6]
Throttle control assembly
[7]
[6]
TCAS
traffic collision avoidance system
[7]
[6]
TCCA
Transport Canada's Civil Aviation
[7]
[6]
TCDS
type certificate data sheet
[7]
[6]
TCF
Terrain clearance floor
[7]
[6]
TCH
threshold crossing height
[7]
[6]
TCI
thrust computer indicator
[7]
[6]
TCN
TACAN
[7]
[6]
TDOP
Time dilution of precision
[7]
[6]
TDR
Transponder
(In some cases)
[7]
[6]
TDZ
touchdown zone
[7]
[6]
TERPS
terminal instrument procedures
Or: terminal en route procedures
[7]
[6]
TFC
traffic
[7]
[6]
TFR
temporary flight restriction
Airspace
[7]
[6]
TGB
transfer gearbox
[7]
[6]
TGL
temporary guidance leaflet
[7]
[6]
TGL(S)
touch-and-go landing(s)
[7]
[6]
TGT
Target
[7]
[6]
Turbine gas temperature
[7]
[6]
THLD
threshold
Or: THR
[7]
[6]
TH
True Heading
Or: THDG
[7]
[6]
THR
runway threshold
[7]
[6]
THS
trimmable horizontal stabilizer, see tailplane
[7]
[6]
TIS–B
Traffic information service – broadcast
[7]
[6]
TIT
turbine inlet temperature
[7]
[6]
TK
Track angle
[7]
[6]
TKE
Track-angle error
[7]
[6]
TLB
technical logbook (EASA)
[7]
[6]
TMA
terminal manoeuvring area (Europe)
USA/Canada: terminal control area
[7]
[6]
TMG
touring motor glider
[7]
[6]
TML
Toolbox Mobile Library (Boeing)
[7]
[6]
TMZ
transponder mandatory zone
[7]
[6]
TOC
Top of climb
Or: T/C
[7]
[6]
TOD
top of descent (point)
Or: T/D
[7]
[6]
TODA
take-off distance available
[7]
[6]
TO/GA
Takeoff/go-around switch / thrust
Or: TOGA
[7]
[6]
TOP
take-off power
[7]
[6]
transmission operator (electricity)
[4]
[3]
TOR
take-off runway
[7]
[6]
TORA
take-off runway available
[7]
[6]
TOT
Turbine outlet temperature
[7]
[6]
TOW
take-off weight
[7]
[6]
TOWS
take-off warning system
[7]
[6]
TP
turning point at missed approach
[7]
[6]
TPA
traffic pattern altitude
[7]
[6]
TR
tail rotor
Or: T/R. Helicopters.
[7]
[6]
thrust reverser(s)
Or: T/R
[7]
[6]
transformer rectifier
[7]
[6]
transmitter receiver or transceiver
Or: T/R
[7]
[6]
TRA
temporary reserved area (airspace)
[7]
[6]
TRACON
terminal radar approach control
[7]
[6]
TRANS
transition
[7]
[6]
Transmission (telecommunications)
Or: transmit
[7]
[6]
TRE
type rating examiner
[7]
[6]
TRK
Track
[7]
[6]
TRP
thrust rating panel
[7]
[6]
Mode S transponder
[7]
[6]
TSLOVH
Time since last overhaul
Normally measured in FH or EFH
[7]
[6]
TSN
Time since new
Normally measured in FH or EFH for an aircraft, engine or component
[7]
[6]
TTAF
total time air frame
[7]
[6]
TTR
TCAS II transmitter/receiver
[7]
[6]
TTSN
total time since new
[7]
[6]
TTSO
total time since overhaul
[7]
[6]
TVE
Total vertical error
[7]
[6]
TWB
Transcribed Weather Broadcasts[6]
Abbreviated area forecast
[7]
[6]
TWC
tail wind component
[7]
[6]
TWDL
Two-way data link
Or: terminal weather data link
[7]
[6]
TWDR
Terminal Doppler Weather Radar
[7]
[6]
TWIP
Terminal weather information for pilots
[7]
[6]
TWLU
Terminal Wireless LAN Unit
[7]
[6]
TWR
Air traffic control tower
[7]
[6]
Terminal weather radar
[7]
[6]
TWY
taxiway
[7]
[6]
TX
Transmit
[7]
[6]
UAS
Unmanned Aircraft System[20]
[7]
[6]
UAV
Unmanned aerial vehicle
Commonly called 'drones', also 'Remotely Piloted Aircraft (RPA)'
[7]
[6]
UIR
upper information region
[7]
[6]
ULB
underwater locator beacon
[7]
[6]
UNICOM
Universal Communications, air-ground communication facility
[7]
[6]
UNL
Unlimited
Seen on GFA and is used for visibility
[7]
[6]
UPRT
upset prevention and recovery training
[7]
[6]
V
magnetic variation
[7]
[6]
Volts or voltage
[7]
[6]
Volt (measurement)
[4]
[3]
V&V
video & vision[21]
[7]
[6]
VASI
visual approach slope indicator
VASIS = visual approach slope indicator system
[7]
[6]
VBV
variable bleed valve
In turbine engines
[7]
[6]
VCR
visual control room
[7]
[6]
VDF
VHF direction-finding
[7]
[6]
VDL
VHF Data Link
[7]
[6]
VDP
visual descent point
Point in a direct approach where a 3º normal visual descent can be started to achieve a safe landing and stabilized approach to the RWY - VDP (in distance) = HAT (height over terrain) / 300 (HAT is the height of the MDA read in the approach chart of the AD)
[7]
[6]
VDR
VHF digital radio
[7]
[6]
VFO
Variable-frequency oscillator
[7]
[6]
VFR
visual flight rules
[7]
[6]
VG/DG
Vertical gyroscope/directional gyroscope
[7]
[6]
VGLS
Visual Guidance Lighting Systems
FAA navigation services
[7]
[6]
VGM
voice generator module
See AWOS
[7]
[6]
VID
visible impact damage
[7]
[6]
VIGV
variable inlet guide vane
[7]
[6]
V/L
VOR/Localizer
[7]
[6]
VMC
visual meteorological conditions
[7]
[6]
minimum control speed with critical engine out
[7]
[6]
VNAV
vertical navigation
Or: V/NAV
[7]
[6]
VNE
Never exceed speed
[7]
[6]
VNO
Maximum structural cruising speed
[7]
[6]
VNR
VHF navigation receiver
[7]
[6]
VOR
VHF omni-directional range
[7]
[6]
VOR/DME
VOR with Distance measuring equipment
[7]
[6]
VOR/MB
VOR marker beacon
[7]
[6]
VORTAC
VOR and TACAN combination
[7]
[6]
VOX
Voice transmission
Voice Operated Transmitter
[7]
[6]
VPA
Vertical Path Approach
[7]
[6]
VPATH
Vertical path
[7]
[6]
V/R
Voltage regulator
[7]
[6]
VRP
Visual point of reference
[7]
[6]
VRS
vortex ring state
Helicopter flight phenomenon
[7]
[6]
V/S
Vertical speed
[7]
[6]
VSCF
variable speed constant frequency
Electricity generation system
[7]
[6]
VSI
vertical speed indicator
[7]
[6]
VSM
Vertical separation limit
[7]
[6]
VSO
Stall speed in landing configuration
[7]
[6]
VSV
variable stator vane
In a turbine engine
[7]
[6]
VSWR
Voltage–standing wave ratio
[7]
[6]
VTA
VFR terminal area chart[1]
[7]
[6]
VTOL
vertical take-off and landing[1]
[7]
[6]
V/TRK
Vertical track
[7]
[6]
VVI
vertical velocity indicator
Same as VSI
[7]
[6]
VX
Speed for best angle of climb
[7]
[6]
VY
Speed for best rate of climb
[7]
[6]
WAAS
Wide Area Augmentation System
[7]
[6]
WAC
World Aeronautical Chart
[7]
[6]
WAT
weight, altitude, temperature
Variables that affect takeoff performance
[7]
[6]
W&B
Weight & Balance
Sometimes referred to as WxB
[7]
[6]
WCA
Wind Correction Angle
[7]
[6]
WD
Wind direction
Or: WINDR
[7]
[6]
WEF
with effect from
[7]
[6]
WL
Waterline
[7]
[6]
WMS
Wide-area master station
[7]
[6]
WMSC
Weather message switching center
[7]
[6]
WMSCR
Weather message switching center replacement
[7]
[6]
WOCL
window of circadian low
[7]
[6]
WOFW
weight-off-wheels
Indicates aircraft is off ground since lift off
[7]
[6]
WONW
weight-on-wheels
Indicates aircraft is on ground since touch down
[7]
[6]
WPT
Waypoint
Or: WYPT
[7]
[6]
WS
wind shear
[7]
[6]
WTC
Wake Turbulence Category
[7]
[6]
Wx
weather[1]
[7]
[6]
WXR
Weather radar system
[7]
[6]
XC
cross-country[1]
[7]
[6]
XCVR
Transceiver
[7]
[6]
XFR
Transfer
[7]
[6]
XMIT
transmit
[7]
[6]
XMSN
transmission
[7]
[6]
XMTR
transmitter
[7]
[6]
XPDR
transponder
[7]
[6]
XPNDR
transponder
[7]
[6]
XTK
Crosstrack
[7]
[6]
X-Start
Cross-start
Using the air pressure or electrical power from a working engine
[7]
[6]
Y
yaw or yaw angle
[7]
[6]
Y/D
yaw damper
Or: YD
[7]
[6]
Z
Zulu Time
Coordinated Universal Time (UTC)
[7]
[6]
ZFT
zero-fuel time
[7]
[6]
ZFW
zero-fuel weight
[7]
[6]
AAQS
Ambient Air Quality Standards (environment) (US)
[4]
[3]
AAU
Assigned amount units (measurement)
[4]
[3]
ABT
Availability based tariff (electricity)
[4]
[3]
ABF
Aquatic Base Flow (Hydropower) (electricity)
[4]
[3]
ACA
Annual Charge Adjustment (electricity)
[4]
[3]
ACEEE
American Council for an Energy-Efficient Economy
[4]
[3]
ACRS
Accelerated Cost Recovery System (finance)
[4]
[3]
ADITC
Accumulated Deferred Investment Tax Credit (policy)
[4]
[3]
AEP
American Electric Power (electricity)
[4]
[3]
AESO
Alberta Electric System Operator
[4]
[3]
AFUDC
allowance for funds used during construction
[4]
[3]
AFV
Alternative fuel vehicle
[4]
[3]
AGA
American Gas Association
[4]
[3]
AGD
Associated Gas Distributors (US)
[4]
[3]
AIEE
American Institute of Electrical Engineers
[4]
[3]
AIMA
Agricultural Impact Mitigation Agreement (US)
[4]
[3]
ALARP
As low as reasonably practicable
[4]
[3]
ALJ
Administrative law judge
[4]
[3]
AMBO
Armenia, Macedonia, Bulgaria Oil pipeline
[4]
[3]
AMI
Advanced metering infrastructure
[4]
[3]
AMRA
Automatic Meter Reading Association
[4]
[3]
ANGTA
Alaskan Natural Gas Transportation Act of 1977 to build the Alaska gas pipeline
[4]
[3]
ANGTS
Alaskan Natural Gas Transportation System
[4]
[3]
AOS
Authorized Overrun Service
[4]
[3]
APA
Administrative Procedure Act
—Alaska Power Administration
[4]
[3]
APE
Area of potential effect (electricity)
[4]
[3]
APPA
American Public Power Association (electricity)
[4]
[3]
AQCR
Air Quality Control Region (US) (environment)
[4]
[3]
ARA
(in shipping) ports of Amsterdam – Rotterdam – Antwerp (oil)
[4]
[3]
ARR
Auction Revenue Rights (electricity)
[4]
[3]
ASCC
Alaskan System Coordination Council
[4]
[3]
ASE
Alliance to Save Energy
[4]
[3]
ASTM
American Society for Testing and Materials
[4]
[3]
AVR
Automatic Voltage Regulator (electricity)
[4]
[3]
BA
Balancing Authority
[4]
[3]
Biological Assessment
[4]
[3]
BACT
Best Available Control Technology
[4]
[3]
BBL/D
Barrel per day
[4]
[3]
BBL/SD
Barrel per day, on stream days
[4]
[3]
BBL
barrel (42 gallons)
—Balgzand Bacton Line (BBL Pipeline)
[4]
[3]
BCF
billion cubic feet
[4]
[3]
BES
Bulk electric system (Electricity transmission)
[4]
[3]
BESS
Battery Energy Storage System
[4]
[3]
BfP
Bureau Fédéral du Plan (Belgium). (Has responsibilities over economic, social and environmental policy
[4]
[3]
bhp
Brake horsepower
[4]
[3]
BIA
Bureau of Indian Affairs (US)
[4]
[3]
BIPS
Bulk Independent Power System
[4]
[3]
BIPV
Building Integrated Photo Voltaic
[4]
[3]
bl
Barrel
[4]
[3]
BLM
Bureau of Land Management of United States Department of the Interior
[4]
[3]
BOE
Barrel of oil equivalent (international)
[4]
[3]
BPA
Bonneville Power Administration (US)
[4]
[3]
BPS
Bulk Power System (Electricity transmission)
[4]
[3]
BTMG
Behind The Meter Generation
[4]
[3]
BTU
British thermal unit(s)
[4]
[3]
Board of Trade unit (1 kWh) (UK historical)
[4]
[3]
BTX
from BTX process, a mixture of benzene, toluene, and xylene (oil)
[4]
[3]
BuRec
United States Bureau of Reclamation (government)
[4]
[3]
BWR
Boiling water reactor (nuclear)
[4]
[3]
C&I
Commercial and industrial customers (Electricity transmission)
[4]
[3]
CAEM
Center for the Advancement of Energy Markets (US)
[4]
[3]
CAES
Compressed Air Energy Storage
[4]
[3]
CAFE
Corporate Average Fuel Economy standards (US)
[4]
[3]
CAISO
California Independent System Operator Corporation, a regional transmission organization. (US)
[4]
[3]
CARB
California Air Resources Board
[4]
[3]
CBL
Customer Baseline Load[1]
[4]
[3]
CBM
Capacity Benefit Margin
[4]
[3]
CBOB
Conventional Gasoline Blendstock for Oxygenate Blending (Motor Gasoline Blending Component)
[4]
[3]
CCGT
Combined cycle gas turbine electricity generator
[4]
[3]
CCLIP
Conditional Credit Line for Investment Projects
[4]
[3]
CCN
Certificate of Convenience and Necessity (utilities regulation)
[4]
[3]
CCPG
Colorado Coordinated Planning Group
[4]
[3]
CCPP
Combined cycle power plant
[4]
[3]
CDD
Cooling degree day, a qualitative index used to reflect the demand for energy to cool a business
[4]
[3]
CDR
Carbon dioxide removal
[4]
[3]
CEA
Country Environmental Analysis
[4]
[3]
CEC
California Energy Commission
—Commission for Environmental Cooperation
[4]
[3]
CEEC
Central and Eastern European Countries
[4]
[3]
CEMS
Continuous emissions monitoring system
[4]
[3]
CEP
Country Environmental Profile
—Clean Energy Partnership, a joint hydrogen-project in Europe.
[4]
[3]
CEPS
Centre for European Policy Studies
[4]
[3]
CEPII
Centre d'Etudes Prospectives et d'Informations Internationales Economics think tank
[4]
[3]
CEQ
Council on Environmental Quality
[4]
[3]
CER
Certified Emission Reduction
[4]
[3]
CERA
Cambridge Energy Research Associates
[4]
[3]
CERCLA
Comprehensive Environmental Response, Compensation, and Liability Act "Superfund" (US)
[4]
[3]
CERCLIS
Comprehensive Environmental Response, Compensation, and Liability Information System (US)
[4]
[3]
CERTS
Consortium for Electric Reliability Technology Solutions sponsored by the United States Department of Energy and California Energy Commission (US)
[4]
[3]
CfD
Contract for difference
[4]
[3]
CFTC
Commodity Futures Trading Commission
[4]
[3]
CGR
Charge Gas Recirculation, Compact Gas Ramp (like FGSU)
[4]
[3]
CH4
Methane
[4]
[3]
CIAC
Contributions in Aid of Construction
[4]
[3]
CMVE
Competitive Market Value Estimate
[4]
[3]
CO
Carbon monoxide
[4]
[3]
CO2
Carbon dioxide
[4]
[3]
COC
Cost of capital
[4]
[3]
CP
Coincident Peak
—Certificate Proceeding
[4]
[3]
CPP
Critical Peak Pricing
[4]
[3]
CPP-F
Critical peak fixed
[4]
[3]
Critical peak variable
[4]
[3]
CPUC
California Public Utilities Commission
[4]
[3]
CREF
Caribbean Renewable Energy Facility
[4]
[3]
CRP
Conservation Reserve Program (US)
[4]
[3]
CSEM
Center for the Study of Energy Markets (US)
[4]
[3]
CW
Cooling Water
[4]
[3]
CZMA
Coastal Zone Management Act
[4]
[3]
DADRP
Day Ahead Demand Response Program
[4]
[3]
DADS
Demand response Availability Data System
[4]
[3]
DANIDA
Danish International Development Agency
[4]
[3]
DA-RTP
RTP Day ahead real time pricing (regarding Electricity metering)
[4]
[3]
DC
Direct current
[4]
[3]
DCLM
Direct control load management
[4]
[3]
DEFG
Distributed Energy Financial Group (US)
[4]
[3]
DEIS
Draft Environmental Impact Statement (US)
[4]
[3]
DERMS
Distributed Energy Resource Management Systems
[4]
[3]
DF
Distribution Factor, Dual-Fuel
[4]
[3]
DIIS
Danish Institute for International Studies (organization)
[4]
[3]
DLC
Direct load control (regarding Load management)
[4]
[3]
DoD
Depth of discharge, energy drawn from a battery
[4]
[3]
DOE/FE
United States Department of Energy Office of Fossil Energy (government)
[4]
[3]
DOI
United States Department of the Interior (government)
[4]
[3]
DOT
United States Department of Transportation (government)
[4]
[3]
DRB
Demonstrated reserve base
[4]
[3]
DRCC
Demand Response Coordinating Council (coalition)
[4]
[3]
DRR
Demand Response resources
[4]
[3]
DRRC
Demand Response Research Center (California)
[4]
[3]
DSM
Demand side management
[4]
[3]
Dth
Dekatherm (defined as 1 million British thermal units, also written "MMBtu") (measurement)
[4]
[3]
DTW
dealer tank wagon (as in, "oil companies setting regional dealer tank wagon pricing") (Oil)
[4]
[3]
DU
Dangerous Undetected
[4]
[3]
E&D
Exploration and development expenses
[4]
[3]
E/E/PE
Electrical/Electronic/Programmable Electronic
[4]
[3]
E85
E85 fuel: A fuel containing a mixture of 85 percent ethanol and 15 percent gasoline
[4]
[3]
E95
like E85 fuel but with less gasoline. A fuel containing a mixture of 95 percent ethanol and 5 percent gasoline
[4]
[3]
ECAR
East Central Area Reliability Coordination Agreement (US)
[4]
[3]
EPCIP
European Programme for Critical Infrastructure Protection
[4]
[3]
ECPA
Electric Consumers Protection Act (US)
[4]
[3]
EDC
Electric Distribution Company (electricity)
[4]
[3]
EdF
Electricité de France
[4]
[3]
EDRP
Emergency demand response program
[4]
[3]
EE
Energy efficiency
[4]
[3]
EEI
Edison Electric Institute
—Energy Efficiency Index for European Union energy labels
[4]
[3]
EERS
Energy Efficiency Resource Standards
[4]
[3]
EF
Earth Fault
[4]
[3]
energy factor (clothes washers)
[4]
[3]
EHV
Extra high voltage
[4]
[3]
EIA
Energy Information Administration (US)
—Environmental impact assessment (international)
[4]
[3]
EIB
European Investment Bank
[4]
[3]
EIM
Energy Imbalance Market (electricity)
[4]
[3]
Energy Improvement Mortgage
[4]
[3]
EIPP
Eastern Interconnection Phasor Project
[4]
[3]
ELCON
Electricity Consumers Resources Council
[4]
[3]
EMF
Electro magnetic field
[4]
[3]
EMP
Environmental Management Plan
[4]
[3]
EOR
Enhanced oil recovery
[4]
[3]
EPAct
Energy Policy Act of 1992 (US)
—Energy Policy Act of 2005 (US)
[4]
[3]
EPRI
Electric Power Research Institute (US)
[4]
[3]
EPSA
Electric Power Supply Association
[4]
[3]
EQR
Electric Quarterly Report
[4]
[3]
ERA
Economic Regulatory Administration (part of United States Department of Energy
[4]
[3]
ERCOT
Electric Reliability Council of Texas, Inc, a regional transmission organization. (US)
[4]
[3]
ERGEG
European Regulators Group for Electricity and Gas
[4]
[3]
ERIS
Energy Resource Interconnection Service (electricity)
[4]
[3]
ERO
Electric Reliability Organization. The US designated NERC as its ERO.
[4]
[3]
ERoEI
Energy returned on energy invested
[4]
[3]
ERRA
Energy Regulators Regional Association
[4]
[3]
ESCO
Energy service company
[4]
[3]
ESMAP
Energy Sector Management Assistance Programme
[4]
[3]
ESM
Engine Safety Module
[4]
[3]
ESP
Electrostatic precipitator
[4]
[3]
ESS
Energy Storage System, as in grid energy storage (electricity)
[4]
[3]
ETBE
ethyl tertiary butyl ether
[4]
[3]
EU
European Union
[4]
[3]
EUEF
European Union Energy Facility
[4]
[3]
EUEI
European Union Energy Initiative
[4]
[3]
FACTS
Flexible Alternating Current Transmission System
[4]
[3]
FASB
Financial Accounting Standards Board
[4]
[3]
FBD
Function(al) Block Diagram
[4]
[3]
FBR
fast breeder reactor
[4]
[3]
FCITC
First Contingency Incremental Transfer Capability
[4]
[3]
FEIS
Final Environmental impact statement (US)
[4]
[3]
FELCC
Firm Energy Load Carrying Capability
[4]
[3]
FERA
Fire and Explosion Risk Assessment
[4]
[3]
FERC
Federal Energy Regulatory Commission (U.S.)
[4]
[3]
FGD
Flue-gas desulfurization
[4]
[3]
FGSU
Fuel Gas Supply Unit (like CGR)
[4]
[3]
FINESSE
Financing Energy Services for Small Scale Users
[4]
[3]
Fishway
Fish ladder
[4]
[3]
FLD
Functional Logic Diagram
[4]
[3]
FLPMA
Federal Land Policy and Management Act (US)
[4]
[3]
FME
Free market economics
[4]
[3]
FONSI
Finding of no significant impact. See Environmental impact statement (US)
[4]
[3]
FPC
Federal Power Commission (US)
[4]
[3]
FRCC
Florida Reliability Coordinating Council (US)
[4]
[3]
FRS
Financial Reporting System
[4]
[3]
FT
Firm Transportation Service
[4]
[3]
FTA
Fault Tree Analysis
[4]
[3]
FTC
Federal Trade Commission (US)
[4]
[3]
FTS
Firm transportation service
[4]
[3]
FUA
The Fuel Use Act (US)
[4]
[3]
FUCO
Foreign Utility Company
[4]
[3]
FWPA
Federal Water Power Act (US)
[4]
[3]
G&T
Generation and transmission utility cooperative (electricity)
[4]
[3]
GADS
Generating Availability Data System (electricity)
[4]
[3]
GAL
gallon (measurement)
[4]
[3]
GAO
Government Accountability Office (General Accounting Office) (US) (government)
[4]
[3]
GATT
General Agreement on Tariffs and Trade (government)
[4]
[3]
GEF
Global Environmental Facility (environment)
[4]
[3]
Genco
Any company doing electricity generation (US) (electricity)
[4]
[3]
GFN
Global Footprint Network
[4]
[3]
GFSE
Global Forum on Sustainable Energy (organization)
[4]
[3]
GIC
Gross Inland (energy) Consumption (EU) (energy)
[4]
[3]
Gas Inventory Charge (natural gas)
[4]
[3]
GHG
Greenhouse gas (climate)
[4]
[3]
GIA
Generator Interconnection Agreement (electricity)
[4]
[3]
GISB
Gas Industry Standards Board (now NAESB) (US) (natural gas)
[4]
[3]
GLDF
Generator to Load Distribution Factor. See Load balancing (electricity)
[4]
[3]
Gm3
Billion cubic metres (measurement – gas)
[4]
[3]
GMO
Genetically modified organism
[4]
[3]
GMP
Green Mountain Power (US) (electricity)
[4]
[3]
GNP
gross national product (economics)
[4]
[3]
GNSED
Global Network for Sustainable Energy Development
[4]
[3]
GRI
Gas Research Institute (US) (natural gas)
[4]
[3]
GRC
General rate case (US) (regulatory)
[4]
[3]
GridCo
Any company running a transmission grid (electricity). Also known as a TransCo (US) (electricity)
[4]
[3]
GSF
Generator to Load Distribution Factor. See Load balancing (electricity)
[4]
[3]
GPE
gravitational potential energy
[4]
[3]
GSR
Gas Supply Realignment (natural gas)
[4]
[3]
Gt
Gigaton (1 billion tons) (measurement)
[4]
[3]
GTCC
Gas Turbine Combined Cycle (electricity)
[4]
[3]
GTI
Gas Technology Institute (US)
[4]
[3]
Gtoe
One billion tons of oil equivalent(EU) (measurement- oil)
[4]
[3]
GVEP
Global Village Energy Partnership (organization)
[4]
[3]
GVW
gross vehicle weight (transportation)
[4]
[3]
GW
Gigawatt (one billion watts) (measurement- elect)
[4]
[3]
GWE
Gigawatt of electric energy (measurement- elect)
[4]
[3]
GWh
Gigawatt hour (one billion watt hours) (measurement- elect)
[4]
[3]
GWP
global warming potential (climate)
[4]
[3]
HAZOP
Hazard And Operability Study
[4]
[3]
HCA
Host Control Area (electricity)
[4]
[3]
HERS
Home energy rating standard (conservation)
[4]
[3]
HHI
Herfindahl–Hirschman Index (markets)
[4]
[3]
home heating index
[4]
[3]
hp
Horsepower (measurement)
[4]
[3]
HRSG
Heat recovery steam generation
[4]
[3]
HTGR
high temperature gas cooled reactor (nuclear)
[4]
[3]
HVAC
Heating, ventilation, and air conditioning (conservation)
—High voltage alternating current (electricity)
[4]
[3]
HVAR
Highly Valued Aquatic Resource
[4]
[3]
HVDC
High Voltage Direct Current
[4]
[3]
I/C
Interruptible /Curtailable (electricity)
[4]
[3]
ICAP
Installed Capacity (electricity)
[4]
[3]
ICAP-SCR
Installed capacity special case resources (electricity)
[4]
[3]
ICCP
Inter-Control Center Communications Protocol (electricity)
[4]
[3]
IDC
Interchange Distribution Calculator (electricity)
[4]
[3]
IEA
International Energy Agency (Paris)
[4]
[3]
IEM
Internal electricity market (electricity)
[4]
[3]
IEPE
Institute of Energy Policy and Economics (France)
[4]
[3]
IER
Incremental Energy Rate
[4]
[3]
IET
International emission trading (policy)
[4]
[3]
IGCC
Integrated coal gasification combined cycle
[4]
[3]
IGIC
Interim gas inventory charge (natural gas)
[4]
[3]
IGSC
Interim gas supply charge (natural gas)
[4]
[3]
IGT
Institute of Gas Technology (natural gas)
[4]
[3]
IGU
International Gas Union (natural gas)
[4]
[3]
IHR
Incremental Heat Rate- plant monitoring (electricity)
[4]
[3]
IIASA
International Institute for Applied System Analysis
[4]
[3]
IJC
International Joint Commission
[4]
[3]
ILP
Integrated Licensing Process
[4]
[3]
INGAA
Interstate Natural Gas Association of America
[4]
[3]
IOS
Interconnected Operations Services (electricity)
[4]
[3]
IOU
Investor owned utility (electricity)
[4]
[3]
IPAA
Independent Petroleum Association of America (oil)
[4]
[3]
IPCC
Intergovernmental Panel on Climate Change (climate)
[4]
[3]
IPS/UPS
Integrated Power System/United Power System, consisting of Independent Power Systems of 12 countries bordering Russia and the Unified Power System of Russia
[4]
[3]
IROL
Interconnection Reliability Operating Limit (electricity)
[4]
[3]
ISO-NE
Independent System Operator of New England, a regional transmission organization. (US) (electricity)
[4]
[3]
ISS
Interruptible Sales Service
[4]
[3]
ITC
Investment tax credit (policy)
[4]
[3]
ITS
"Interruptible Transportation Service" is gas shipment via pipeline whose delivery may be interrupted in favor of "firm shipment" contracts if there is lack of capacity. (natural gas)
[4]
[3]
JRC
Joint Research Centre
[4]
[3]
JREC
Johannesburg Renewable Energy Coalition
[4]
[3]
koe
One kilogram oil equivalent (EU) (measurement)
[4]
[3]
kV
Kilovolt (one thousand volts) (measurement)
[4]
[3]
kVA
One thousand volt Ampere (measurement)
[4]
[3]
kvar
one thousand vars (measurement)
[4]
[3]
kW
Kilowatt (one thousand watts) (measurement)
[4]
[3]
kWE
kilowatt electric (measurement)
[4]
[3]
kWh
Kilowatt hour (one thousand watt hours) (measurement)
[4]
[3]
LaaR
Load acting as a resource (ERCOT category) (electricity)
[4]
[3]
LBNL
Lawrence Berkeley National Laboratory (US)
[4]
[3]
LCOD
Levelized cost of delivery (electricity)
[4]
[3]
LCOE
Levelized cost of energy (electricity)
[4]
[3]
LDC
Local distribution company (electricity)
[4]
[3]
LEVP
Low Emissions Vehicle Program
[4]
[3]
LHV
lower heating value
[4]
[3]
Li-Ion
Lithium Ion (electricity storage)
[4]
[3]
LIHEAP
Low Income Home Energy Assistance Program
[4]
[3]
LIPA
Long Island Power Authority (US) (electricity)
[4]
[3]
LLF
Load-loss factor (electricity)
[4]
[3]
LMP
Locational marginal price/pricing. See explanation in electricity markets.
[4]
[3]
LMR
Load Modifying Resource (electricity)
[4]
[3]
LNG
Liquified Natural Gas
[4]
[3]
LODF
Line Outage Distribution Factor (electricity)
[4]
[3]
LOLE
Loss of load expectation (electricity)
[4]
[3]
LOLP
Loss of load probability (electricity)
[4]
[3]
LOTO
Lockout / tagout.
[4]
[3]
LPG
liquefied petroleum gas
[4]
[3]
LPN
Lender Participation Notes
[4]
[3]
LRG
liquefied refinery gases
[4]
[3]
LSE
Load serving entity
[4]
[3]
LSF
Load Shift Factor
[4]
[3]
lsfo
Low sulfur fuel oil
[4]
[3]
LWR
light water reactor
[4]
[3]
MAAC
Mid Atlantic Area Council (US- geographically within PJM)
[4]
[3]
MADRI
Mid Atlantic Distributed Resources Initiative (US)
[4]
[3]
MAIN
Mid America Interconnected Network (US)
[4]
[3]
MAOP
Maximum allowable operating pressure
[4]
[3]
MAPP
Mid Continent Area Power Pool (US)
[4]
[3]
MBOE
One million barrels of oil equivalent(EU)
[4]
[3]
MBU
Main Breaker Unit
[4]
[3]
Mcf
Roman numeral "M" for one thousand cubic feet (measurement of natural gas)
[4]
[3]
MDAS
Meter Data Acquisition System
[4]
[3]
MDD
Maximum Daily Delivery Obligations
[4]
[3]
MDDQ
Maximum Daily Delivery Quantity
[4]
[3]
MDQ
Maximum Daily Quantities
[4]
[3]
MECS
Manufacturing Energy Consumption Survey
[4]
[3]
MEDREG
Mediterranean Energy Regulators
[4]
[3]
MEDREP
Mediterranean Renewables Energy Partnership
[4]
[3]
MER
Maximum efficient rate
[4]
[3]
MERC
Mobile Emission Reduction Credit (MERC) (US)
[4]
[3]
MFS
Minimum Functional Specification
[4]
[3]
MFV
Modified fixed variable rate
[4]
[3]
MISO
Midcontinent Independent System Operator, Inc. A regional transmission organization. (US)
[4]
[3]
MLP
Maximum lawful price
[4]
[3]
MLRA
Major Land Resource Areas
[4]
[3]
MMbbl/d
one million barrels of oil per day
[4]
[3]
MMBtu
1 million British thermal units, same as dekatherm
[4]
[3]
MMCF
one million cubic feet (measurement of natural gas)
[4]
[3]
MMCFD
one million cubic feet per day
[4]
[3]
MMGAL
one million gallons
[4]
[3]
MMGAL/D
one million gallons per day
[4]
[3]
MMST
one million short tons
[4]
[3]
MoC
Management of Change
[4]
[3]
MODFLOW
model of groundwater flow
[4]
[3]
MOX
mixed oxide fuel (nuclear)
[4]
[3]
MPAN
Meter Point Administration Number
[4]
[3]
MPG
Miles per gallon
[4]
[3]
MSHA
Mine Safety and Health Administration (US)
[4]
[3]
msl
Mean sea level
[4]
[3]
MSW
Municipal solid waste
[4]
[3]
Mt
one million tons (ambiguous as to whether short tons or metric tons)
—one Metric ton
[4]
[3]
MTBE
methyl tertiary butyl ether
[4]
[3]
MTEF
Medium Term Expenditure Framework
[4]
[3]
MTEP
Midwest ISO Transmission Expansion Plan 2005 (US)
[4]
[3]
Mtoe
One million tons of oil equivalent(EU)
[4]
[3]
Muni
Municipality
[4]
[3]
MW
Megawatt (one million watts)
[4]
[3]
MWE
megawatt electric
[4]
[3]
MWh
Megawatt hour (one million watt hours)
[4]
[3]
NAAQS
National Ambient Air Quality Standards (US)
[4]
[3]
NAESB
North American Energy Standards Board (formerly GISB)
[4]
[3]
NAFTA
North American Free Trade Agreement
[4]
[3]
NAICS
North American Industry Classification System
[4]
[3]
NARUC
National Association of Regulatory Utility Commissioners (US) [1]
[4]
[3]
NASPI
North American Synchrophasor Initiative
[4]
[3]
NASUCA
National Association of Utility Consumer Advocates(US)
[4]
[3]
NATC
Non Recallable Available Transfer Capability
[4]
[3]
NBS
National Bureau of Standards (US)
[4]
[3]
NCD
Non coincidental Demand
[4]
[3]
NCEP
National Council on Electricity Policy (US) [2]
[4]
[3]
NCSL
National Conference of State Legislatures (US)
[4]
[3]
NEA
The National Energy Act of 1978 (US)
[4]
[3]
NEB
National Energy Board (Canada)
[4]
[3]
NEDRI
New England Distributed Resources Initiative (US)
[4]
[3]
NEM
Net energy metering (US)
[4]
[3]
NEPA
National Environmental Policy Act (US)
[4]
[3]
NEPOOL
New England Power Pool
[4]
[3]
NERC
North American Electric Reliability Council
[4]
[3]
NGA
Natural Gas Act (US)
[4]
[3]
NGAA
Natural Gasoline Association of America (US)
[4]
[3]
NGPA
Natural Gas Policy Act of 1978 (US)
[4]
[3]
NGPL
Natural gas plant liquids
[4]
[3]
NGPSA
Natural Gas Pipeline Safety Act of 1968 (US)
[4]
[3]
NGSA
Natural Gas Supply Association (US)
[4]
[3]
NGV
Natural gas vehicle
[4]
[3]
NHPA
National Historic Preservation Act (US)
[4]
[3]
NIETC
National Interest Electric Transmission Corridor (US)
[4]
[3]
NITC
Normal Incremental Transfer Capability
[4]
[3]
NIMBY
Not in my backyard regarding siting of energy generation and transmission infrastructure.
[4]
[3]
NOAA
National Oceanic and Atmospheric Administration (US)
[4]
[3]
NOPR
Notice of Proposed Rulemaking (US)
[4]
[3]
NORDEL
association of Nordic electric system operators, comprising Denmark, Finland, Norway, Sweden
[4]
[3]
NOx
nitrogen oxides
[4]
[3]
NPCC
Northeast Power Coordinating Council (US)
[4]
[3]
NRC
Nuclear Regulatory Commission (US)
[4]
[3]
NRCS
National Resource Conservation Service (US)
[4]
[3]
NRECA
National Association of Rural Electric Cooperatives (US)
[4]
[3]
NREL
National Renewable Energy Laboratory (US)
[4]
[3]
NREPA
National Resource and Environmental Protection Act (US)
[4]
[3]
NRI
National Rivers Inventory (US)
[4]
[3]
NRIS
Network Resource Interconnection Service (electricity)
[4]
[3]
NSA
Noise sensitive area
[4]
[3]
NTAC
Northwest Transmission Assessment Committee (US)
[4]
[3]
NUG
Non Utility Generator
[4]
[3]
NURE
national uranium resource evaluation (US)
[4]
[3]
NYDER
New York Department of Environmental Resources
[4]
[3]
NYISO
New York Independent System Operator, Inc. (US)
[4]
[3]
NYPSC
New York Public Service Commission
[4]
[3]
NYSERDA
New York State Energy Research and Development Authority
[4]
[3]
NIMYBY
Not In My BackYard
[4]
[3]
O&M
Operation and Maintenance Expenses
[4]
[3]
O3
Ozone
[4]
[3]
OATI
Open Access Technology International (US energy software company)
[4]
[3]
OATT
Open Access Transmission Tariff (US)
[4]
[3]
OCGT
Open Cycle Gas Turbine
[4]
[3]
OCS
Outer Continental Shelf (oil and wind resources)
[4]
[3]
OCSLA
Outer Continental Shelf Lands Act (oil)
[4]
[3]
OFO
Operational Flow Order
[4]
[3]
OMP
Operation and Maintenance Plan
[4]
[3]
Ontario
IESO Ontario Independent Electricity System Operator (Canada)
[4]
[3]
OPEC
Organization of Petroleum-Exporting Countries (oil)
[4]
[3]
OPRG
oxygenated fuels program reformulated gasoline (oil)
[4]
[3]
OREC
ocean resource energy credits
[4]
[3]
ORNL
Oak Ridge National Laboratory (U.S.) (nuclear)
[4]
[3]
OSHA
U.S. Department of Labor Occupational Safety and Health Administration
[4]
[3]
OTAG
Ozone Transport Assessment Group
[4]
[3]
OTDF
Outage Transfer Distribution Factor
[4]
[3]
OTEC
ocean thermal energy conversion (electricity)
[4]
[3]
P&ID
Piping & Instrumentation Diagram
[4]
[3]
PADD
Petroleum Administration for Defense Districts (US)
[4]
[3]
PBR
pebble bed reactor (nuclear)
[4]
[3]
PCS
Power conversion system, electric power conversion. Plant Control System.
[4]
[3]
PCT
Programmable Communicating Thermostat (electricity), Production Conformity Test
[4]
[3]
PDCI
Pacific Direct Current Intertie (US) (electricity)
[4]
[3]
PDT
Pressure Differential Transmitter
[4]
[3]
PERC
Passivated Emitter Rear Contact (type of PV cell)
[4]
[3]
PEM
Proton Exchange Membrane
[4]
[3]
PFC
perfluorocarbons
[4]
[3]
PG&E
Pacific Gas & Electric (US) (electricity)
[4]
[3]
PHA
Production Handling Agreement, Process Hazard Analysis
[4]
[3]
PHFFU
Plant held for future use
[4]
[3]
PIDX
Petroleum Industry Data Exchange (oil)
[4]
[3]
PIER
Public Interest Energy Research (CEC)
[4]
[3]
PIFUA
Powerplant and Industrial Fuel Use Act of 1978
[4]
[3]
PIU
Proven In Use
[4]
[3]
PJM
PJM Interconnection, LLC, a regional transmission organization. (US) (electricity)
[4]
[3]
PLMA
Peak Load Management Association (US) (electricity)
[4]
[3]
PM&E
Protection, mitigation and enhancement
[4]
[3]
PMU
Phasor measurement unit (electricity)
[4]
[3]
PNNL
Pacific Northwest National Laboratory (DOE) (US)
[4]
[3]
POD
Point of Delivery
[4]
[3]
POLES
Prospective On Long Term Energy Systems
[4]
[3]
POLR
Provider of last resort (electricity)
[4]
[3]
PPA
Power Purchase Agreement (electricity)
[4]
[3]
ppmv
Parts Per Million by Volume
[4]
[3]
ppp
Purchasing power parity
[4]
[3]
PREP
Pacific Regional Energy Programme
[4]
[3]
PRESSEA
Promotion of Renewable Energy Sources in South East Asia (PRESSEA)
[4]
[3]
Prim
Primary (electricity) nuclear, hydro, geothermal, wind, solar
[4]
[3]
PSC
Public Service Commission
[4]
[3]
PSD
Prevention of Significant Deterioration
[4]
[3]
PSE
Puget Sound Energy (US) (electricity)
[4]
[3]
PSoC
Partial State of Charge, operational mode of grid supporting batteries able to respond to both demand and excess production, see UltraBattery
[4]
[3]
PTDF
Power Transfer Distribution Factor (electricity)
[4]
[3]
PTP
Point to Point Transmission Service (electricity)
[4]
[3]
PUC
Public utilities commission (electricity)
[4]
[3]
PUD
Public utility district (electricity)
[4]
[3]
PUHCA
Public Utility Holding Company Act of 1935 (US) (electricity)
[4]
[3]
PURPA
Public Utility Regulatory Policies Act of 1978 (US) (electricity)
[4]
[3]
PVC
photovoltaic cell (solar)
[4]
[3]
polyvinyl chloride
[4]
[3]
PWR
pressurized water reactor (nuclear)
[4]
[3]
PX
Power exchange
[4]
[3]
QF
qualifying facility
[4]
[3]
QSE
Qualifying scheduling entity
[4]
[3]
QUAD
1015 Btu (a quadrillion in the short scale)
[4]
[3]
R/P
Reserve on Production
—Reserves to Production
[4]
[3]
RAB
Regional Advisory Body (US)
[4]
[3]
RAC
Refiners' acquisition cost
[4]
[3]
RAP
Regulatory Assistance Project
[4]
[3]
RAR
Reasonable assured resources
[4]
[3]
RATC
Recallable Available Transmission Capability
[4]
[3]
RBMK
Russian: Реактор Большой Мощности Канальный = "High Power Channel Type Reactor" (RU)
[4]
[3]
RBOB
reformulated gasoline blendstock for oxygenate blending
[4]
[3]
RCIS
Reliability Coordinator Information System
[4]
[3]
RCRA
Resource Conservation and Recovery Act (US)
[4]
[3]
REA
Rural Electrification Administration (US)
[4]
[3]
REC
Renewable energy credit (US)
[4]
[3]
RECS
Residential Energy Consumption Survey (US)
[4]
[3]
REEEP
Renewable Energy and Energy Efficiency Partnership
[4]
[3]
RER
Renewable Energy Rider
[4]
[3]
RES
Renewable energy source
[4]
[3]
RET/EE
IAF Renewable Energy Technology & Energy Efficiency Investment Advisory Facility
[4]
[3]
RFA
Regulatory Flexibility Act (US)
[4]
[3]
RFG
reformulated gasoline (oil)
[4]
[3]
RGGI
Regional Greenhouse Gas Initiative
[4]
[3]
RGS
Renewable Generating System
[4]
[3]
RM
Rulemaking
[4]
[3]
RMATS
Rocky Mountain Area Transmission Study (US) (electricity)
[4]
[3]
RMR
Reliability Must Run (electricity)
[4]
[3]
RMU
Removal Units
[4]
[3]
ROFR
Right of First Refusal (finance)
[4]
[3]
ROW
Right of Way
[4]
[3]
RPS
Renewable Portfolio Standards (US)
[4]
[3]
RRO
Regional reliability organization (US)
[4]
[3]
RSE
Revenue Stream Estimate (finance)
[4]
[3]
relative standard error
[4]
[3]
RTBM
Real-Time Balancing Market (electricity)
[4]
[3]
RTEP
Regional transmission expansion plan
[4]
[3]
RTG
Regional Transmission Group (US)
[4]
[3]
RUS
Rural Utilities Service
[4]
[3]
RVP
Reid vapor pressure
[4]
[3]
SCE
Southern California Edison (US)
[4]
[3]
SCE&G
South Carolina Electric & Gas (US)
[4]
[3]
scf
Standard cubic foot
[4]
[3]
SCO
Stranded Cost Obligation (finance)
[4]
[3]
SCR
Special Case Resources (US- NYISO category)
[4]
[3]
Selective Catalytic Reduction
[4]
[3]
SDG&E
San Diego Gas & Electric (US)
[4]
[3]
SEA
Strategic Environmental Assessment
[4]
[3]
SEER
seasonal energy efficiency ratio
[4]
[3]
seasonal E efficiency ratio
[4]
[3]
SEFI
Sustainable Energy Finance Initiative
[4]
[3]
SEIA
Sustainable Energy Industry Association
[4]
[3]
Seams
Interconnections Seam Study
[4]
[3]
SEPA
Smart Energy Power Alliance
[4]
[3]
SERC
Southeastern Electric Reliability Council (US)
[4]
[3]
SF6
sulfur hexafluoride
[4]
[3]
SFC
Solid oxide fuel cell (transportation)
[4]
[3]
SFEIS
Supplemental Final Environmental Impact Statement (US)
[4]
[3]
SFF
Safe Failure Fraction
[4]
[3]
SFV
Straight Fixed Variable
[4]
[3]
SG
Spark-ignited Gas
[4]
[3]
SHPO
State Historic Preservation Office (US)
[4]
[3]
SI
International System of Units (Système international d'unités)
[4]
[3]
SIC
Standard Industrial Classification
[4]
[3]
SIF
Safety Instrumented Function
[4]
[3]
SIL
Safety Integrity Level
[4]
[3]
SIS
Safety Instrumented System
[4]
[3]
SMES
Superconducting magnetic energy storage
[4]
[3]
SMPs
Special Marketing Programs
[4]
[3]
SNG
Synthetic Natural Gas or Substitute Natural Gas
[4]
[3]
SO2
Sulfur dioxide
[4]
[3]
SoH
State of health of rechargeable battery
[4]
[3]
SOL
System Operating Limit
[4]
[3]
SPCC
Spill Prevention, Containment and Countermeasure Plan
SPM—Synchronized phasor measurement- a WAMS network with synchrophasor sensors (PMUs). (electricity)
[4]
[3]
SPR
Strategic Petroleum Reserve (US)
[4]
[3]
SRP
Salt River Agricultural Improvement & Power District (US) (electricity)
[4]
[3]
SSG
WI PWG Seams Steering Group of Western Interconnection PlanningWork Group (US) (electricity)
[4]
[3]
SSM
Synchronized system measurement-a WAMS with synchronous sensors in addition to PMUs. See Phasor networks.
[4]
[3]
SSOV
Safety ShutOff Valve
[4]
[3]
STEP
Southwest Transmission Expansion Plan group (US) (electricity)
[4]
[3]
SVEC
Shenandoah Valley Electric Cooperative
[4]
[3]
SWAT
Southwest Area Transmission (US) (electricity)
[4]
[3]
SWU
Separative work unit
[4]
[3]
TAME
Tertiary amyl methyl ether
[4]
[3]
TAPS
Trans-Alaska Pipeline System (natural gas)
[4]
[3]
TBL
transmission business line (electricity)
[4]
[3]
TBS
town border station
[4]
[3]
Tcf
Trillion cubic feet (measurement)
[4]
[3]
TCR
Transition cost recovery (mechanism)
[4]
[3]
TDU
Transmission Dependent Utility (electricity)
[4]
[3]
TEFRA
Tax Equity and Fiscal Responsibility Act of 1985
[4]
[3]
TEN
Trans-European Networks (electricity)
[4]
[3]
TLR
Transmission Line Loading Relief Procedures (electricity)
[4]
[3]
TO
Transmission owner (electricity)
[4]
[3]
toe
Ton of oil equivalent (EU)
[4]
[3]
TOU
time of use (rate) (electricity)
[4]
[3]
Transco
transmission company (US) (electricity)
—Transcontinental Pipeline (US) (natural gas)
[4]
[3]
TRM
Transmission reliability margin (electricity)
[4]
[3]
TS
Two-stage
[4]
[3]
TTC
Total transfer capability (electricity)
[4]
[3]
TVA
Tennessee Valley Authority (US) (electricity)
[4]
[3]
TW
terawatt (one trillion watts) (measurement)
[4]
[3]
TWH
terawatt-hour (one trillion watt hours)
[4]
[3]
T&D
Transmission and distribution
[4]
[3]
U.S.C.
United States Code
[4]
[3]
U3O8
triuranium octaoxide (nuclear)
[4]
[3]
UAE
United Arab Emirates (oil)
[4]
[3]
UCAP
Unforced Capacity (electricity)
[4]
[3]
UCTE
Union for the Coordination of the Transport of Electricity, the power transmission system of continental Europe
[4]
[3]
UF6
uranium hexafluoride (nuclear)
[4]
[3]
UFLS
Under frequency load shedding (electricity)
[4]
[3]
UHVAC
ultra-high-voltage alternating current (electricity)
[4]
[3]
UHVDC
ultra-high-voltage direct current (electricity)
[4]
[3]
ULCC
Ultra Large Crude Carrier (oil)
[4]
[3]
UMTRA
Uranium Mill Tailings Radiation Control Act of 1978 (US)
[4]
[3]
UNCCD
United Nations Convention to Combat Desertification
[4]
[3]
UNDESA
UN Department of Economic and Social Affairs
[4]
[3]
UNDP
United Nations Development Programme
[4]
[3]
UNECE
United Nations Economic Commission for Europe
[4]
[3]
UNEP
United Nations Environment Programme
[4]
[3]
UNFCCC
United Nations Framework Convention on Climate Change
[4]
[3]
UO2
uranium dioxide (nuclear)
[4]
[3]
UO3
uranium trioxide (nuclear)
[4]
[3]
UO4
uranyl peroxide (nuclear)
[4]
[3]
UOX
uranium oxide (nuclear)
[4]
[3]
URR
Ultimate Recoverable Resources
[4]
[3]
USBR
United States Bureau of Reclamation
[4]
[3]
USCE
United States Army Corps of Engineers
[4]
[3]
US DOE
United States Department of Energy
[4]
[3]
USGS
United States Geological Survey
[4]
[3]
UVLS
under voltage load shedding (electricity)
[4]
[3]
VA
Volt-ampere (measurement)
[4]
[3]
VAWT
vertical axis wind turbine (wind)
[4]
[3]
VIN
vehicle identification number (US) (transportation)
[4]
[3]
VLCC
very large crude carrier (oil)
[4]
[3]
VMT
vehicle miles traveled (transportation)
[4]
[3]
VOC
volatile organic compound
[4]
[3]
VPP
Variable peak pricing (electricity)
[4]
[3]
VSA
Voltage stability analysis
[4]
[3]
W
Watt
[4]
[3]
WACOG
weighted average cost of gas
[4]
[3]
WAMS
Wide area measurement system, also Wide area monitoring system - see description in phasor measurement unit article. (electricity)
[4]
[3]
WCMC
World Conservation Monitoring Centre
[4]
[3]
WCRE
World Commission on Renewable Energy
[4]
[3]
WEA
World Energy Assessment
[4]
[3]
WEC
World Energy Council
[4]
[3]
WECC
Western Electricity Coordinating Council (US)
[4]
[3]
WEI
Western Electric Institute (US)
[4]
[3]
WEEA
World Energy Efficiency Organization
[4]
[3]
WH
watthour (measurement)
[4]
[3]
WHO
World Health Organization
[4]
[3]
WIRAB
Western Interconnection Regional Advisory Body (US)
[4]
[3]
WRI
World Resources Institute
[4]
[3]
WSCC
Western Systems Coordinating Council (US)
[4]
[3]
WSPP
Western Systems Power Pool (US)
[4]
[3]
WSSD
World Summit on Sustainable Development
[4]
[3]
WTP
Willingness to pay
[4]
[3]
WY
Water Year (measurement)
[4]
[3]
AFUE
annual fuel utilization efficiency
[4]
[3]
BTL
building tightness limit (building tightness)
[4]
[3]
CDH
cooling degree hours (climate)
[4]
[3]
CFL
compact fluorescent light
[4]
[3]
COP
coefficient of performance
[4]
[3]
CRI
color rendering index
[4]
[3]
EEM
Energy Efficient Mortgage
[4]
[3]
EER
energy efficiency ratio
[4]
[3]
ERV
energy-recovery ventilator
[4]
[3]
HRV
heat-recovery ventilator
[4]
[3]
HSPF
heating seasonal performance factor
[4]
[3]
HVI
Home Ventilating Institute
[4]
[3]
IECC
International Energy Conservation Code
[4]
[3]
K-value
thermal conductance
[4]
[3]
Low-e
low emissivity
[4]
[3]
LEED
Leadership in Energy and Environmental Design, standard for Green Building design
[4]
[3]
MINHERS
Mortgage Industry National Home Energy Rating Systems Standards
[4]
[3]
MVG
minimum ventilation guideline (building tightness)
[4]
[3]
MVL
minimum ventilation level (building tightness)
[4]
[3]
NAECA
National Appliance Energy Conservation Act
[4]
[3]
ODS
oxygen depletion sensor
[4]
[3]
RESNET
Residential energy services network
[4]
[3]
R-value
thermal resistance
[4]
[3]
SHGC
solar heat gain coefficient
[4]
[3]
SPB
Simple Payback (energy conservation investments)
[4]
[3]
U-value
thermal transmittance (also called U-factor)
[4]
[3]
WF
water factor (clothes washers)
[4]
[3]