PowerShell/Data/Abbr/general.csv

1	ABBR	MEANING
2	0D	obvious deed
3	1AM	Air Mechanic 1st Class
4	1D	One-Dimensional
5	2AM	Air Mechanic 2nd Class
6	2D	Two-dimensional
7	2LA	Two Letter Acronym
8	2Lt	2nd Lieutenant
9	3AM	Air Mechanic 3rd Class
10	3D	Three-Dimensional
11	3G	Third-generation mobile telephone system
12	3i	Investors In Industry (venture capitalists)
13	3M	Minnesota Mining and Manufacturing Company
14	4G	Fourth-generation mobile telephone system
15	4WD	Four-wheel drive
16	5D	Five-Dimensional
17	6D	Six-Dimensional
18	7D	Seven-Dimensional
19	8D	Eight-Dimensional
20	9D	Nine-Dimensional
21	A	Ampere
22	A10	Atlantic 10 Conference
23	A1C	Airman First Class
24	A4	European standard office paper size
25	aA	Attoampere
26	AAA	administration,authorization,and authentication,American Automobile Association ('Triple-A'),anti-aircraft artillery,Amateur Athletic Association (of England),Asistencia Asesoría y Administración (Spanish,'Assistance,Consulting,and Administration'—Mexican professional wrestling promotion)
27	AAAS	American Association for the Advancement of Science
28	AAAV	Advanced Amphibious Assault Vehicle
29	AADAC	Alberta Alcohol and Drug Abuse Commission
30	AADD	Adult attention deficit disorder
31	AADT	annual average daily traffic
32	AAFES	Army and Air Force Exchange Service
33	AAIS	advanced airborne interceptor simulator
34	AAM	air-to-air missile
35	AAMOF	as a matter of fact
36	AAN	American Academy of Nursing
37	AANEAS	Anglo-Australian Near-Earth Asteroid Survey
38	AAODL	Atmospheric Aerosols and Optics Data Library
39	AAPC	Accounting and Auditing Policy Committee
40	AARP	American Association of Retired Persons (now officially known only by the initials)
41	AASPEM	advanced air-to-air system performance evaluation model
42	AAT	Australian Antarctic Territory
43	AAV	Amphibious Assault Vehicle
44	AAWC	anti-air warfare commander
45	AB	Able Seaman (both the rank and the occupation),Alberta (postal symbol)
46	ABB	ASEA Brown Boveri (Swiss-Swedish multinational company)
47	ABBA	Agnetha,Benny,Björn,Anni-Frid (Swedish pop group)
48	ABC	the first three letters of the Latin script known as the alphabet
49	ABC	abstinence, be faithful, condoms
50	ABC	Active Body Control
51	ABC	airway, breathing, circulation
52	ABC	Alcoholic Beverage Commission
53	ABC	alien big cat
54	ABC	always be careful
55	ABC	American-born Chinese
56	ABC	anti-lock brake controller
57	ABC	atomic, biological, chemical
58	ABCS	(U.S.) Army Battle Command System
59	ABET	Accreditation Board for Engineering and Technology
60	ABFIST	Advanced Bradley Full Crew Interactive Skills Trainer
61	ABGI	Addington-Barker Group International
62	ABIN	Agência Brasileira de Inteligência (Brazilian Intelligence Agency)
63	ABL	American Basketball League
64	ABLE	AirBorne Law Enforcement (police air support unit)
65	ABMC	American Battle Monuments Commission
66	ABN	Australian Business Number (a number issued by the Australian government as registration of a business and used for taxation purposes)
67	ABPI	Association of the British Pharmaceutical Industry
68	ABRSM	Associated Board of the Royal Schools of Music
69	ABS	acrylonitrile butadiene styrene, or: anti-lock braking system
70	ABSA	Amalgamated Banks of South Africa
71	ABSTRIPS	abstraction-based STRIPS
72	ABV	Alcohol by volume
73	ABW	Aruba (ISO 3166 trigram)
74	Ac	Actinium
75	AC	Adriamycin-Cyclophosphamide (chemotherapy),Air Conditioning,Aircraftman,Alternating Current,Altocumulus,ante Christum (Latin,'before Christ'; see BC),ante cibum (Latin,'before meals'),Antigua and Barbuda (FIPS 10-4 country code),Associazione Calcio (Italian,'football (soccer) club'),A/C,Air Conditioned/Conditioning,Aircraft
76	aC	Attocoulomb
77	AC1	Aircraftman 1st Class
78	AC2	Aircraftman 2nd Class
79	ACA	Affordable Care Act,shorthand for the Patient Protection and Affordable Care Act,commonly called 'Obamacare',Airspace Control Authority,Airspace Co-ordination Area,A Current Affair
80	ACARS	Aircraft Communications Addressing and Reporting System
81	ACB	Asociación de Clubes de Baloncesto (Spanish for 'Association of Basketball Clubs')
82	ACCAC	Awdurdod Cymwysterau,Cwricwlwm ac Asesu Cymru (Qualifications,Curriculum and Assessment Authority for Wales)
83	ACCD	American Coalition of Citizens with Disabilities
84	ACCS	Air Communications and Control Squadron
85	ACDA	Arms Control & Disarmament Agency
86	ACDC	Alternating Current Direct Current,the name of an Australian rock music band,a term for a bisexual person,A/Cdre,Air Commodore
87	ACDT	Apple Certified Desktop Technician,Australian Central Daylight Time
88	ACES	Aerolíneas Centrales de Colombia (Spanish,'Central Colombian Airlines'),Auxiliary Campus Enterprises and Services of Alfred State College
89	ACF	Administration for Children and Families,American Car and Foundry,American Culinary Federation
90	ACHT	Average Call Hold Time
91	ACINT	Acoustic Intelligence
92	ACK	Acknowledge (telecommunications; cf. NAK)
93	ACL	Access Control List,Anterior cruciate ligament; the initialism can also refer to an injury to this ligament.,Atlantic Coast Line Railroad
94	ACLJ	American Center for Law and Justice
95	ACLOS	Automatic CLOS (missile control system)
96	ACLS	American Council of Learned Societies
97	ACLU	American Civil Liberties Union,American Communist Lawyers Union (pejorative slang for the above)
98	ACM	many,including Association for Computing Machinery; see entry
99	ACMC	(U.S.) Assistant Commandant of the Marine Corps
100	ACN	Airborne Communications Node,Australian Company Number (number issued by the Australian government as registration of a limited liability company)
101	ACNA	Anglican Church in North America
102	ACO	Airspace Control Order
103	ACOBA	Advisory Committee on Business Appointments
104	ACOG	American College of Obstetricians and Gynecologists
105	ACOM	(U.S.) Atlantic Command
106	ACORN	Association of Community Organizations for Reform Now
107	ACP	African,Caribbean and Pacific Group of States,Air Control Point
108	ACR	Advanced Concepts and Requirements
109	ACRI	African Crisis Initiative
110	ACRT	Advanced Concepts Research Tool simulator
111	ACS	Affiliated Computer Services (NYSE ACS),Alaska Communications Service,American Cancer Society,American Chemical Society,Association of Caribbean States,Australian Computer Society
112	ACSC	Army Command and Staff College (various nations)
113	ACST	American Cooperative School of Tunis
114	ACST	Australian Central Standard Time
115	ACT	Adaptive Control of Thought (cognitive model),American College Test (ing Program),Australian Capital Territory (also postal symbol),ACT UP,AIDS Coalition to Unleash Power
116	ACTD	Advanced Concept Technology Demonstration
117	ACTF	(U.S.) Army Constructive Training Federation,Australian Children's Television Foundation,ACT-R,ACT-Rational (cognitive model),ACT-R/PM,ACT-R/Perceptual-Motor (cognitive model)
118	ACTU	Australian Council of Trade Unions
119	ACU	American Conservative Union
120	ACUF	Advisory Committee on Undersea Features,American Conservative Union Foundation
121	AD	Air Defence,Andorra (ISO 3166 digram),Anno Domini (Latin,'In the year of our Lord')
122	ADA	Air Defence Artillery,American Dental Association,Assistant District Attorney,Americans with Disabilities Act (see also the similar but non-acronymic Ada programming language)
123	ADAC	Allgemeiner Deutscher Automobil-Club (German for 'General German Automobile Club')
124	ADAGE	Air Defense Air to Ground Engagement (simulation)
125	ADAP	AIDS Drug Assistance Program
126	ADAS	Asiago-DLR Asteroid Survey
127	ADAT	Alesis Digital Audio Tape (recording format)
128	ADATS	Agricultural Development and Training Society,Air Defence Anti-Tank System,Australian Defence Air Traffic System
129	ADB	Asian Development Bank
130	ADC	Aide De Camp,U.S. Air Defense Command (1946-1992),Apple Display Connector,Program Against Digital Counterfeiting of Currency
131	ADD	Analog Digital Digital (CD quality),Attention-Deficit Disorder,Administration on Developmental Disabilities
132	ADDIE	Analyze Design Develop Implement and Evaluate
133	ADDNS	Advanced Deployable Day/Night Simulation
134	ADGB	Air Defence of Great Britain
135	ADHD	Attention-Deficit Hyperactivity Disorder
136	ADHS	Attention-Deficit Hyperactivity Syndrome
137	ADI	Acceptable/Allowable Daily Intake
138	ADIZ	Air Defence Identification Zone
139	ADL	Anti-Defamation League
140	ADM	Administrative,,Admiral,and the U.S. Public Health Service Commissioned Corps,Archer Daniels Midland,Assistant Deputy Minister
141	ADOA	Air Defence Operations Area
142	ADP	Adenosine DiPhosphate,Army Doctrine Publication (UK,Canada,Australia),Automatic/Automated Data Processing
143	ADRG	Arc-second Raster Chart (ARC) Digitized Raster Graphics
144	ADS	Active Denial System,Astrophysics Data System,Attention Deficit Syndrome
145	ADSR	Attack,Decay,Sustain,Release (sound envelope specification)
146	ADT	Atlantic Daylight Time (UTC−3 hours)
147	ADTB	Army Doctrine and Training Bulletin
148	ADW	Air Defence Warning
149	AE	Armed Forces Africa/Canada/Europe/Middle East (postal symbol),United Arab Emirates (ISO 3166 digram; FIPS 10-4 country code),Artix Entertainment,American Eagle,A&E, Arts & Entertainment Network,the original name for the U.S. TV channel now known as A&E Network
150	AEDT	Australian Eastern Daylight Time
151	AEF	American Expeditionary Force
152	AEGIS	Airborne Early warning Ground environment Interface Segment (fake etymology)
153	AESR	Aeronautical Equipment Service Record
154	AEST	Australian Eastern Standard Time
155	aet	After extra time (Football)
156	AEW	Airborne Early Warning,Airborne Electronic Warfare
157	AF	Afghanistan (FIPS 10-4 country code; ISO 3166 digram),Air Force,As f*ck
158	aF	Attofarad
159	AFA	U.S. Air Force Academy,Asociación del Fútbol Argentino (Spanish for 'Argentine Football Association')
160	AFAIC	As Far As I'm Concerned
161	AFAICT	As Far As I Can Tell
162	AFAIK	As Far As I Know
163	AFAIR	As Far As I Remember/Recall
164	AFAM	Associazione Friulana di Astronomia e Meteorologia (Italian,'Friuli Association of Astronomy and Meteorology'),Department of African and Afro-American Studies,University of North Carolina at Chapel Hill — notable for its links to the school's academic-athletic scandal in the 2010s
165	AFATDS	Advanced Field Artillery Tactical Data System
166	AFCEA	Armed Forces Communications and Electronics Association
167	AFDB	African Development Bank
168	AFES	Automatic Fire Extinguishing System
169	AFG	Afghanistan (ISO 3166 trigram)
170	AFI	French Territory of the Afars and Issas (ISO 3166 trigram; obsolete since 1977),'Agencia Federal de Investigaciónes' (México)
171	AFIST	Abrams Full Crew Interactive Skills Trainer
172	AFJ	April Fool's Joke
173	AFK	Away From Keyboard (Internet chat abbreviation)
174	AFLAC	American Family Life Assurance Company of Columbus
175	AFO	Association of Field Ornithologists
176	AFOSR	U.S. Air Force Office of Scientific Research
177	AFP	Agence France-Presse (French,'French Press Agency'), Australian Federal Police
178	AFQT	Armed Forces Qualification Test
179	AFRC	Air Force Reserve Command
180	AFRL	Air Force Research Laboratory
181	AFROTC	Air Force Reserve Officer Training Corps
182	AFRTS	Armed Forces Radio and Television Service
183	AFSC	U.S. Air Force Staff College (obsolete; replaced with JFSC), U.S. Air Force Systems Command
184	AFSCN	U.S. Air Force Satellite Control Network
185	AFSPC	Air Force Space Command
186	AFT	American Farmland Trust
187	AFV	armoured fighting vehicle
188	AG	air gunner,Aktiengesellschaft (German,'incorporated'),Algeria (FIPS 10-4 country code),Antigua and Barbuda (ISO 3166 digram),Assemblies of God
189	ag	Attogram
190	Ag	Silver (Latin argentum)
191	AGA	AB Gas-accumulator ('ah-gah',Swedish company),Advanced Graphics Architecture
192	AGARD	Advisory Group for Aerospace Research and Development
193	AGARDograph	Advanced Guidance for Alliance Research and Development publication
194	AGASA	Akeno Giant Air Shower Array (cosmic ray detector)
195	AGB	Internal Nintendo initialism (Advanced Game Boy) for Game Boy Advance
196	AGC	Adjutant General's Corps (British Army)
197	AGDC	Australian Game Developers' Conference
198	AGI	Auxiliary Group Intelligence
199	AGM	Annual General Meeting
200	AGN	Active Galactic Nucleus
201	AGO	Angola (ISO 3166 trigram)
202	AGP	Accelerated Graphics Port
203	AGRICOLA	Agriculture Online Access
204	AGS	Alaska Ground Station (LandSat)
205	AGTS	Advanced Gunnery Training System
206	AGU	American Geophysical Union
207	AGW	Autonomous Guided Weapon
208	Ah	Ampere-hour
209	AH	Attack Helicopter
210	aH	Attohenry
211	AHA	American Heart Association
212	AHCPR	Agency for Health Care Policy and Research (obsolete; replaced with AHRQ)
213	AHEC	Australian Health Ethics Committee
214	AHPCRC	Army High Performance Computing Research Center
215	AHQ	Air Headquarters
216	AHRQ	Agency for Healthcare Research and Quality
217	AHS	American Housing Survey
218	AI	Air Interdiction,Amnesty International,Artificial Insemination,Artificial Intelligence,Anguilla (ISO 3166 digram)
219	AIA	Aerospace Industries Association,American Institute of Architects,Anguilla (ISO 3166 trigram)
220	AIAA	American Institute of Aeronautics and Astronautics
221	AIC	African Independent Church,Animal Identification Coordinator
222	AICD	Australian Institute of Company Directors
223	AICMFP	And I Claim My Five Pounds
224	AID	U.S. Agency for International Development
225	AIDS	Acquired Immune Deficiency Syndrome
226	AIM	Australian Institute of Management
227	AIMP	Aurora Incremental Modernization Project
228	AIPAC	American Israel Public Affairs Committee
229	AIR	Aircraft Inventory Record
230	AIRFA	American Indian Religious Freedom Act
231	AIRS	Aerometric Information Retrieval System (obsolete; replaced with AFS)
232	AIS	Australian Institute of Sport,Automatic Identification System
233	AISB	(British Society for the Study of) Artificial Intelligence and the Simulation of Behaviour
234	aJ	Attojoule
235	AJ	Azerbaijan (FIPS 10-4 country code)
236	Ajax	Asynchronous JavaScript And XML
237	AJD	Astronomical Julian day
238	AJP	Allied Joint Publication
239	AJPW	All Japan Pro Wrestling
240	AK	Alaska (postal symbol)
241	aK	Attokelvin
242	AKA	Above knee amputation (orthopaedic usage)
243	AKDT	Alaska Standard Daylight Saving Time (UTC−8 hours)
244	AKP	Adalet ve Kalkınma Partisi (Turkish,'Justice and Development Party')
245	AKST	Alaska Standard Time (UTC−9 hours)
246	AL	Alabama (postal symbol),Albania (FIPS 10-4 country code; ISO 3166 digram),Anno Lucis (Latin,'Year of Light',in Masonic tradition,most often seen on plaques bearing the founding dates of buildings,in years AD and years AL)
247	Al	Aluminium
248	aL	Attolitre
249	ALA	Åland Islands (ISO 3166 trigram)
250	ALAP	As Long/Late As Possible
251	ALARM	Air-Launched Anti-Radar Missile
252	ALB	Albania (ISO 3166 trigram)
253	ALD	Accounting Line Designator (nuclear weapon targeting)
254	ALERT	Advanced Linked Extended Reconnaissance and Targeting,Attack and Launch Early Reporting to Theatre
255	ALF	Africa Leadership Forum,Alien Life Form (cf. ALF (TV series)),Animal Liberation Front
256	ALG	Algeria (IOC and FIFA trigram,but not ISO 3166)
257	ALGOL	ALGOrithmic Language
258	ALPA	Air Line Pilots Association
259	ALS	Amyotrophic Lateral Sclerosis
260	ALSHS	Abraham Low Self-Help Systems
261	ALSP	Aggregate Level Simulation Protocol
262	ALTE	Association of Language Testers in Europe
263	Am	Americium
264	AM	Amplitude Modulation and Ante Meridiem; see entry,Armenia (FIPS 10-4 country code; ISO 3166 digram)
265	AM1	Airman 1st class
266	AMCB	U.S. Army/Marine Corps Board
267	AMFOM	Advanced Missile Fly Out Model
268	AMFR	Age-specific Marital Fertility Rate,Amplitude Modulation Following Response
269	AMFRS	Advanced Multi-Function Radio Frequency System,Automatic Multisensor Feature-based Recognition System
270	AML	Acute Myeloid Leukaemia
271	AMLCD	Active Matrix Liquid Crystal Display
272	AMLO	Andrés Manuel López Obrador (Mexican politician),Anti-Money Laundering Office (Thailand government agency)
273	AMO	Atlantic Multidecadal Oscillation
274	AMOLED	Active-matrix organic light-emitting diode
275	AMOS	Advanced MOrtar System,Air Force Maui Optical and Supercomputing observatory
276	AMP	Adenosine MonoPhosphate,Automated Mission Planner
277	AMRAAM	Advanced Medium-Range Air-to-Air Missile
278	AMRDEC	U.S. Aviation & Missile Research,Development,& Engineering Center
279	AMS	Agriculture Marketing Service,American Mathematical Society
280	AMSAA	U.S. Army Materiel Systems Analysis Activity
281	AMSO	U.S. Army Model and Simulation Office
282	AMSU	Advanced Microwave Sounding Unit
283	AMTE	UK Admiralty Marine Technology Establishment (1977-1984)
284	AN	Andorra (FIPS 10-4 country code),Netherlands Antilles (ISO 3166 digram)
285	aN	Attonewton
286	ANA	Administration for Native Americans,Afghan National Army,All Nippon Airways,Anti-Nuclear Anti-body,Australian National Airways,Australian Natives' Association
287	ANC	African National Congress
288	AND	Andorra (ISO 3166 trigram)
289	ANFO	Ammonium nitrate/fuel oil (explosive)
290	ANGLiCo	Air/Naval Gunfire Liaison Company
291	ANL	Argonne National Laboratory
292	ANM	Acoustic Noise Monitor
293	ANOVA	ANalysis Of VAriance
294	ANS	Applied and Natural Sciences
295	ANSI	American National Standards Institute
296	ANT	Netherlands Antilles (ISO 3166 trigram),Antigua and Barbuda (IOC trigram,but not ISO 3166 or FIFA)
297	ANTM	America's Next Top Model
298	ANTY	Acronyms,No Thank You
299	ANWR	Arctic National Wildlife Refuge /ˈænwɑr/
300	ANZ	Australia and New Zealand Banking Group
301	ANZAC	Australian and New Zealand Army Corps
302	AO	Angola (FIPS 10-4 country code; ISO 3166 digram),Approach Officer (submarine),Area of Operations
303	AOC	Air Operations Centre,Air Officer Commanding
304	AOD	Adrenalin O.D. (punk rock band)
305	AOI	Angle Of Incidence (Arab Organization for Industrialization)
306	AOL	America OnLine
307	AOR	Area of Responsibility
308	AOSTH	Adventures of Sonic the Hedgehog
309	AOTS	Attack of the Show!
310	AOU	American Ornithologists' Union
311	AP	Advanced Placement,Air Publication,Andhra Pradesh (Indian state code),Armed Forces Pacific (postal symbol),Associated Press,Auto Pilot
312	APB	All Points Bulletin (police jargon)
313	APEC	Asia Pacific Economic Cooperation
314	APEDS	AMSAA Performance Estimates Data System
315	APEX	Applied Physics Express
316	APHA	American Public Health Association
317	APHIS	Animal and Plant Health Inspection Service
318	APL	Acute Promyeloid Leukaemia,Anti-Personnel Landmine,Applied Physics Laboratory (Johns Hopkins University)
319	APOD	Aerial Port (Airport) Of Debarkation
320	APOE	Aerial Port (Airport) Of Embarkation
321	APOLLO	Apache Point Observatory Lunar Laser-ranging Operation
322	APP	Allied Procedural Publication
323	APR	Annual Percentage Rate
324	AQIM	Al-Qaeda in the Islamic Maghreb
325	Ar	Argon
326	ARAG	Advanced Research and Assessment Group
327	ARB	Administrative Review Board
328	ARBA	Army Review Boards Agency
329	ARCA	Automobile Racing Club of America
330	ARCENT	United States Army Central Command
331	ARDA	Advanced Research and Development Activity (became DTO 2006)
332	ARF	ASEAN Regional Forum
333	ARG	Argentina (ISO 3166 trigram)
334	ARH	Armed Reconnaissance Helicopter
335	ARNet	Acquisition Reform Network
336	ARP	Applied Research Programme
337	ARPA	Advanced Research Projects Agency
338	ARRC	ACE Rapid Reaction Corps
339	ARRF	Allied Rapid Reaction Force
340	ARRL	American Radio Relay League
341	ARSC	Arctic Region Supercomputing Center
342	ARSPACE	U.S. Army Space Command
343	ARTCC	Air Route Traffic Control Center
344	ARWG	Army Research Working Group
345	AS	ActionScript
346	AS	American Samoa (postal symbol; ISO 3166 digram),Australia (FIPS 10-4 country code),Assam / Asom (Indian state code)
347	As	Arsenic
348	aS	Attosiemens
349	ASA	AcetylSalicylic Acid,American Standards Association,Army Security Agency,Atlantic Southeast Airlines
350	ASAP	As Soon As Possible
351	ASARS	Advanced Synthetic Aperture Radar System,Airborne Search and Rescue System
352	asbl	association sans but lucratif (French 'Non-profit organisation')
353	ASBO	Anti-Social Behaviour Order
354	ASCAP	American Society of Composers,Authors,and Publishers
355	ASCC	Army Service Component Commander,Automatic Sequence Controlled Calculator,Air Standardization Coordinating Committee
356	ASCII	American Standard Code for Information Interchange
357	ASD	(U.S.) Assistant Secretary of Defense,autism spectrum disorder
358	ASDIC	Allied Submarine Detection Investigation Committee (Sonar)
359	ASEAN	Association of Southeast Asian Nations
360	ASFAR	Americans for a Society Free of Age Restrictions
361	ASG	Area Support Group
362	ASIC	Australian Securities and Investments Commission,Aviation Security Identification Card
363	ASICS	Anima sana in corpore sano (Latin,'A sound mind in a sound body') (athletic shoe manufacturer)
364	ASIO	Australian Security Intelligence Organisation,Audio stream input output
365	ASIP	Advanced System Improvement Program,Army Stationing and Installation Plan,Application-specific instruction-set processor
366	ASL	Above Sea Level,American Sign Language (also known as Ameslan),'Age,Sex,Location?' (Internet slang)
367	ASM	Air-to-Surface Missile,American Samoa (ISO 3166 trigram),American Society for Metals,American Society for Microbiology
368	ASMB	American Society for Matrix Biology,Adult Swim Message Board
369	ASME	American Society of Mechanical Engineers,American Society of Magazine ors
370	ASMP	Air-Sol Moyenne Portée missile (French 'Medium-range air to surface'),Asymmetric multiprocessing
371	ASN	Associate of Science in Nursing
372	ASOC	Air Sovereignty Operations Centre,Air Support Operations Centre,Airport Security and Operations Centre,Antarctic and Southern Ocean Coalition,Atlanta Symphony Orchestra Chorus,Australian Standard Offence Classification
373	ASP	Active Server Pages,American Society of Primatologists,Ammunition Supply Point,Application Service Provider (cf internet service provider),Astronomical Society of the Pacific,Association of Surfing Professionals
374	ASPI	Australian Strategic Policy Institute
375	ASR	Alkali-silica reaction,Anti Slip Regulation
376	ASRAAM	Advanced Short-Range Air-to-Air Missile
377	ASSC	Association for the Scientific Study of Consciousness
378	AST	Atlantic Standard Time (UTC−4 hours)
379	ASTIA	Armed Services Technical Information Agency
380	ASTM	American Society for Testing and Materials
381	ASTREA	Aerial Support To Regional Enforcement Agencies (sheriff's air support unit)
382	ASUW	AntiSUrface Warfare
383	ASVAB	Armed Services Vocational Aptitude Battery(taken by juniors in high school in the USA)
384	ASVEL	Association Sportive Villeurbanne Éveil Lyonnais (Association Sportive is French for 'Sporting Association'; the club was founded through the merger of AS Villeurbanne and Éveil Lyonnais)
385	ASW	AntiSubmarine Warfare
386	ASWORG	(U.S.) AntiSubmarine Warfare Operations Research Group
387	ASX	Advanced Stream Redirector,Australian Securities Exchange
388	AT	Anti-Tank,Ashmore and Cartier Islands (FIPS 10-4 territory code),Austria (ISO 3166 digram),Advanced Technology (IBM Personal Computer/AT)
389	At	Astatine
390	aT	Attotesla
391	ATA	Advanced Technology Attachment (IBM Personal Computer),Afghan Transitional Authority,Allen Telescope Array,Antarctica (ISO 3166 trigram)
392	ATAC	Air Transportable Acoustic Communications
393	ATACMS	Army TACtical Missile System
394	ATAPI	Advanced Technology Attachment Packet Interface
395	ATAS	Air-To-Air Stinger (missile)
396	ATAT	Aiken Tactical Airsoft Team / Star Wars vehicle
397	ATB	Active Time Battle,British Antarctic Territory (ISO 3166 trigram; merged with AQ in 1979)
398	ATC	Air Training Corps, U.S. Air Transport Command (1942-1948), Athletic Trainer,Certified
399	ATCCIS	Army Tactical Command and Control Information System
400	ATESS	Aerospace and Telecommunications Engineering Support Squadron
401	ATF	French Southern Territories (ISO 3166 trigram),(U.S.) Bureau of Alcohol,Tobacco,Firearms and Explosives
402	ATG	Antigua and Barbuda (ISO 3166 and FIFA trigram)
403	ATGM	Anti-Tank Guided Missile
404	ATGW	Anti-Tank Guided Weapon
405	ATK	Attack
406	ATL	Atlanta,Georgia,the largest city and capital of Georgia
407	ATLAS	All-Terrain Lifter Army System,Assessment Tool for LAnd Systems
408	ATM	Automated Teller Machine,Asynchronous Transfer Mode,At The Moment
409	ATN	Dronning Maud Land (ISO 3166 trigram; merged with AQ in 1983)
410	ATO	Air Tasking Order,Australian Taxation Office
411	ATP	Adenosine TriPhosphate,Allied Tactical Publication,Ammunition Transfer Point
412	ATSD	(U.S.) Assistant Secretary of Defense
413	ATSDR	Agency for Toxic Substances and Disease Registry
414	ATV	All-Terrain Vehicle
415	ATWA	Air,Trees,Water,Animals
416	AU	African Union (was OAU before 2000),American University,Astronomical Unit,Australia (ISO 3166 digram),Austria (FIPS 10-4 country code)
417	Au	Gold (Latin Aurum)
418	AUC	Ab Urbe Condita / Anno Urbis Conditae (Latin 'from the founding of the city' / 'in the year since the founding of the city') (of Rome),Area Under the Curve (concentration time curve; medicine)
419	AUS	Australia (ISO 3166 trigram)
420	AUSCANNZUKUS	Australia,Canada,New Zealand,United Kingdom,United States (security designation)
421	Auslan	Australian Sign Language
422	AUT	Austria (ISO 3166 trigram)
423	AUTL	Army Universal Task List
424	AV	Anguilla (FIPS 10-4 territory code),Audio-Visual,Aviation
425	Av	Aperture value (photographic mode)
426	aV	Attovolt
427	AVA	American Viticultural Area
428	AVB	Audio Video Bridging
429	AVDLR	Aviation Depot Level Repair
430	AVGP	Armoured Vehicle, General Purpose
431	AVIM	Aviation Intermediate Maintenance
432	AVLB	Armoured Vehicle Launched Body
433	AVM	Air Vice-Marshal, Arteriovenous malformation
434	AVO	Apprehended Violence Order
435	AVP	Arubaanse Volkspartij
436	AVP	Association of Volleyball Professionals
437	AVRE	Armoured Vehicle Royal Engineers
438	AVTB	Armoured Vehicle Test Bed,Aviation Test Bed
439	AVUM	Aviation Unit Maintenance
440	AVVO	Acute Vaginal Venereal Outbreak
441	AW	Aruba (ISO 3166 digram)
442	aW	Attowatt
443	AWA	American Wrestling Association
444	AWC	Air Warfare Centre
445	AWD	All Wheel Drive
446	AWE	Advanced Warfighting Experiment
447	AWP	Awaiting Parts (SM&R code)
448	AWSIM	Air Warfare SIMulation
449	AWST	Australian Western Standard Time
450	AWW	Above Water Warfare
451	AX	Åland Islands (ISO 3166 digram)
452	AXP	Ambulance eXchange Point
453	AY	Antarctica (FIPS 10-4 territory code)
454	AYBABTU	All Your Base Are Belong To Us
455	AYU	As Yet Unknown
456	AZ	Arizona (postal symbol),Azerbaijan (ISO 3166 digram),Alkmaar Zaanstreek (Dutch football club)
457	AZE	Azerbaijan (ISO 3166 trigram)
458	AZUR	Actions en zone urbaine (French for: Urban Operations)
459	BAR	Barbados (IOC trigram,but not FIFA or ISO 3166),British American Racing,Browning Automatic Rifle,Buy-American Restrictions,BARD , Binational Agricultural Research and Development fund (between the US and Israel),BARDA , Biomedical Advanced Research and Development Agency,BART , Bay Area Rapid Transit,BAS , Battalion Aid Station,BASE , Building,Antenna,Span,Earth (parachute from),BASF , Badische Anilin und Soda Fabrik (Baden Aniline and Soda Factory,a German chemicals company),BASIC , Beginner's All-purpose Symbolic Instruction Code (acronym was added later,originally it was simply Basic),BAT , Basic Aid Training,BATF , U.S. Bureau of Alcohol,Tobacco,and Firearms,BATS , Behavior Analysis Training System ,Bradley Advanced Training System,BATTeRS , Bisei Asteroid Tracking Telescope for Rapid Survey,BB[edit]
460	BB	Barbados (ISO 3166 digram; FIPS 10-4 country code),Boys' Brigade (Christian youth organization),Brigitte Bardot (actress),Bumblebee
461	BBB	Better Business Bureau,Blood-brain barrier
462	BBC	Breeding Bird Census,British Broadcasting Corporation,Bumper to Back of Cab (trucking measurement)
463	BBL	Be Back Later,Bird Banding Laboratory,British Basketball League
464	BBN	Bolt,Beranek and Newman
465	BBQ	Barbecue
466	BBS	Breeding Bird Survey (North America),Brigade/Battalion Battle Simulation,Bulletin Board System,BBSRC , U.K. Biotechnology and Biological Sciences Research Council,BBVA , Banco Bilbao Vizcaya Argentaria (Spanish bank)
467	BBYO	B'nai B'rith Youth Organization
468	BC	Before Christ,Blind Copy (in emailers),Boston College,Botswana (FIPS 10-4 country code; from Bechuanaland),British Columbia (postal symbol)
469	BCA	Bachelor of Computer Application,Black Coaches & Administrators
470	BCC	Blind Carbon Copy
471	BCCI	Bank of Credit and Commerce International,Board of Control for Cricket in India,BCD , Binary-Coded Decimal
472	BEA	Banque extérieure d'Algérie,British European Airways (ancestor of British Airways),British Electricity Authority,bel
473	BEL	Belgium (ISO 3166 trigram)
474	BEN	Benin (ISO 3166 trigram)
475	BEO	Banquet Event Order
476	BERC	Business Environmental Resource Center
477	BER	Bit Error Rate
478	BH	Bahrain (ISO 3166 digram),Belize (FIPS 10-4 country code)
479	BHR	Bahrain (ISO 3166 trigram)
480	BNF	Backus-Naur Form (computing), British National Formulary
481	BNICE	Biological,Nuclear,Incendiary,Chemical,and Explosive Agents
482	BNP	British National Party,Banque Nationale de Paris,a predecessor to today's BNP Paribas
483	BNS	Bank of Nova Scotia
484	BNSF	Burlington Northern Santa Fe (also AAR reporting mark)
485	BO	Back Orifice,Belarus (FIPS 10-4 country code),Biarritz Olympique (French rugby union club),Bolivia (ISO 3166 digram),Body odor
486	BOAC	British Overseas Airways Corporation (predecessor of British Airways)
487	BoAML	Bank of America Merrill Lynch
488	BOC	British Orthodontic Society, British Oxygen Company
489	BÖC	Blue Öyster Cult
490	BODMAS	Brackets,Orders,Division,Multiplication,Addition,Subtraction
491	BOFH	Bastard Operator From Hell
492	BOGA	Bend Over and Grab Ankles
493	BOGOF	Buy One,Get One Free
494	BOGs	Bunch of Guys
495	BOI	Balance Of Investment,Basis Of Issue
496	BOL	Bolivia (ISO 3166 trigram)
497	BOM	Base Object Model,Bill Of Materials,Block of the Month quilting term,Business opportunity meeting
498	BOPD	Barrel of Oil Per Day
499	BOS	Battlefield Operating System
500	BOT	Balance of Trade,Botswana (IOC and FIFA trigram,but not ISO 3166),Build Operate Transfer,Bank of Thailand,BP[edit]
501	BP	Battle Position,British Petroleum (today,BP does not officially stand for anything),Solomon Islands (FIPS 10-4 country code; from British Protectorate of the Solomon Islands),Bp , Bishop,BPD , Bipolar Personality Disorder,BPM , Beats Per Minute,BPMo , Business Process Mobility
502	BPV	Battlefield Planning Visualization,Bovine papillomavirus
503	BQ	British Antarctic Territory (former ISO 3166 digram; merged with AQ in 1979),Caribbean Netherlands (current ISO 3166 digram; based on the entity's alternate name of Bonaire,Sint Eustatius and Saba),Navassa Island (FIPS 10-4 territory code)
504	BR	Brazil (ISO 3166 digram; FIPS 10-4 country code) ,Bihar (Indian state code),British Rail,Break Ranks (marching band term)
505	BRA	Brazil (ISO 3166 trigram)
506	BRAG	Bicycle Ride Across Georgia
507	BRASS	Breathe,Relax,Aim,Sight,Squeeze (acronym for using a rifle)
508	BSA	Birmingham Small Arms (motorcycles company),Boy Scouts of America,Brigade Support Area
509	BSatCoP	Benjamin Sniddlegrass and the Cauldron of Penguins
510	BSE	Bovine Spongiform Encephalopathy (better known as mad cow disease)
511	BSN	Baloncesto Superior Nacional (Spanish,'National Superior Basketball'; top Puerto Rican league),Bank Simpanan Nasional (Malay,'National Savings Bank'; government-owned Malaysian bank)
512	BSNL	Bharat Sanchar Nigam Limited,Bachelor of Science in Nursing
513	BSoD	Blue Screen of Death (distinct from BSD)
514	BSP	Between-Show Promotion,Binary Space Partitioning,Board Support Package,British Standard Pipe (screw thread),Business-sponsored,Bone sialoprotein
515	BST	Binary search tree,Blended Sales Tax,Bovine somatotropin,British Summer Time
516	BSW	British Standard Whitworth (screw thread)
517	BSX	Bendigo Stock Exchange
518	BT	Baal teshuva (Hebrew,'master of repentance') ,used to describe a Jew who adopts Orthodox Judaism as an adult,Bathythermograph,Bhutan (FIPS 10-4 country code; ISO 3166 digram),BitTorrent,British Telecom,the former name of the company now known as BT Group,BTDT , Been There,Done That,Bti , Bacillus thuringiensis israelensis,BTID , Battlefield Target Identification Device,BTIS , Battlefield Target Identification System
519	Bt	Baronet,Bacillus thuringiensis
520	BTO	Built To Order
521	BTP	British Transport Police
522	BTR	Bronetransporter (БТР = Бронетранспортер '(Heavy) Armoured (Personnel) Transporter')
523	BTU	British Thermal Unit
524	BTW	By The Way
525	BU	Bulgaria (FIPS 10-4 country code) -,Burma (ISO 3166 digram; obsolete since 1989)
526	BUAV	British Union for the Abolition of Vivisection
527	BUG-E	Battlefield Universal Gateway Equipment ('buggy')
528	BUNO	Bureau Number (aircraft serial number)
529	BUR	Burma (ISO 3166 trigram; obsolete since 1989)
530	BV	Background Vocals -,Battlefield Visualization ,,Bouvet Island (ISO 3166 digram; FIPS 10-4 territory code)
531	BVD	Bradley,Voorhees & Day (underwear manufacturer)
532	BVR	Beyond Visual Range
533	BVT	Bouvet Island (ISO 3166 trigram)
534	B&W	Babcock & Wilcox, Black and White, Bowers & Wilkins
535	BW	Bring Wedges (ISO digram)
536	BW	Botswana (ISO 3166 digram)
537	BWA	Botswana (ISO 3166 trigram)
538	BWARS	Bees,Wasps & Ants Recording Society
539	BWC	Biological and Toxin Weapons Convention
540	BWR	Boiling-Water Reactor
541	BX	Base eXchange
542	BY	Burundi (FIPS 10-4 country code), Belarus (ISO 3166 digram), Bavaria
543	BYOB	Bring Your Own Bottle (or beer, beverage, or booze) (multiple,but similar,meanings)
544	BYOC	Bring Your Own Computer (play on BYOB)
545	BYOF	Bring Your Own Flask
546	BYS	Byelorussian Soviet Socialist Republic (ISO 3166 trigram; obsolete since 1992)
547	BYU	Brigham Young University
548	BZ	Belize (ISO 3166 digram)
549	BZP	Benzylpiperazine
550	C	Carbon, Coulomb, One Hundred (in Roman numerals)
551	c	Centi
552	C2C	Consumer-To-Consumer electronic commerce, Cam-To-Cam internet chat
553	c2c	the British rail company formerly known as LTS Rail
554	Ca	Calcium
555	CA	California (postal symbol),Canada (FIPS 10-4 country code; ISO 3166 digram),Catalonia,Civil Affairs,Close Armour,Cocaine Anonymous,Computer Associates,Counter-Air,Cricket Australia
556	CAA	Canadian Automobile Association,(NORAD) Center for Aerospace Analysis,(U.S.) Center for Army Analysis,(U.S.) Clean Air Act,(U.S. Army) Concepts Analysis Agency,Civil Aviation Authority,Colonial Athletic Association
557	CAAT	Campaign Against Arms Trade,Center for Alternatives to Animal Testing
558	CAC	California Association of Criminalists,Chronic Asymptomatic [Disease] Carrier
559	CACM	Central American Common Market
560	CACM	Communications of the ACM
561	CADCAM	Computer-Aided Design/Computer-Aided Manufacturing
562	CADMID	Concept,Assessment,Demonstration,Manufacture,In service,Disposal (life cycle mnemonic)
563	CADPAT	CAnadian Disruptive PATtern
564	CAE	Canadian Aviation Electronics (originally),Certificate in Advanced English
565	CAEn	Close Action Engagement (constructive simulation)
566	CAF	Central African Republic (ISO 3166 trigram),Confederation of African Football (or French Confédération Africaine de Football)
567	CAFAD	Combined Arms For Air Defence
568	CAFDE	Canadian Association of Film Distributors and Exporters,Computer Aided Federation Development Environment
569	CAFE	Corporate Average Fuel Economy standard
570	CAI	Computer Assisted Instruction
571	CAIR	Council on American-Islamic Relations
572	CALABARZON	A region in the Philippines: CAvite,LAguna,BAtangas,Rizal,queZON
573	CALL	Center for Army Lessons Learned
574	CALM	Communications,Air-interface,Long and Medium range
575	CalPERS	California Public Employees' Retirement System
576	Caltrans	California Department of Transpotation
577	CAM	Chemical Agent Monitor,Complementary and alternative medicine,Computer-Aided Manufacturing,Crassulacean acid metabolism (type of photosynthesis)
578	CAMRA	CAMpaign for Real Ale
579	CAN	Canada (ISO 3166 trigram)
580	CANDU	CANada Deuterium Uranium (nuclear reactor design)
581	Canola	Canadian oil,low acid (referring to a specific cultivar of rapeseed bred to have a low erucic acid content)
582	CAPES	CAPability Evaluation System,Combined Arms Planning and Execution System
583	CARE	Citizens Association for Racial Equality (former New Zealand organisation),Community database on Accidents on the Roads in Europe,Cooperative for Aid and Relief Everywhere (originally Cooperative for American Remittances to Europe)
584	CARMONETTE	Computerized Monte Carlo Simulation
585	CARP	Computed Air Release Point
586	CART	Championship Auto Racing Teams (now defunct)
587	CAS	Chemical Abstracts Service,Chief of the Air Staff,Close Air Support
588	CASA	Civil Aviation Safety Authority
589	CASE	Cellular ammunition storage equipment,Computer-Aided Software Engineering
590	CASS	Command Activated Sonobuoy System
591	CASTFOREM	Combined Arms and Support Task FORce Evaluation Model
592	CASTOR	Canadian Automatic Small Telescopes for Orbital Research
593	CAT	Community Acceptance Testing
594	CATK	Counterattack
595	CATS	Computer Active Technology Suspension
596	CATT	Combined Arms Tactical Trainer
597	CAV	Cavalry
598	CAVOK	Ceiling And Visibility OK ('Kav-okay')
599	CAW	Canadian Auto Workers (trade union)
600	CB	Citizens' Band radio,Cambodia (FIPS 10-4 country code)
601	CBASSE	Commission on Behavioral And Social Sciences and Education ('sea bass')
602	CBC	Canadian Broadcasting Corporation,Christmas Bird Count,Cipher-Block Chaining,Cornering Brake Control
603	CBE	Commander of the Order of the British Empire,Cab Beside Engine (see truck)
604	CBF	Confederação Brasileira de Futebol (Portuguese,'Brazilian Football Confederation')
605	CBGB	Country,Blue Grass,and Blues (former New York City nightclub)
606	CBLA	Comparative bullet lead analysis
607	CBM	Canadian Baptist Ministries
608	CBM	Commodore Business Machines
609	CBML	Coalition Battle Management Language
610	CBN	CardsApp Brand Number
611	CBOL	Consortium for the Barcode of Life
612	CBOT	Chicago Board of Trade
613	CBR	Case-Based Reasoning
614	CBRN	Chemical,Biological,Radiological,or Nuclear (weapon or event)
615	CBRNE	Chemical,Biological,Radiological,Nuclear or [high-yield] Explosive (weapon or event)
616	CBS	Columbia Broadcasting System,Corps Battle Simulation
617	CBUS	Columbus,Ohio
618	CC	carbon copy
619	CCA	Counter Command Activity
620	CCC	Canterbury Clothing Company,Civilian Conservation Corps (U.S.,1930s and 1940s),Corpus Christi College,Oxford
621	CCCP	Central Committee of the Communist Party,Cyrillic for SSSR (Soyuz Sovetskikh Sotsialisticheskikh Respublik,Russian Союз Советских Социалистических Республик,Union of Soviet Socialist Republics)
622	CCD	Charge-Coupled Device,Confraternity of Christian Doctrine (Catechism)
623	CCF	Cartoon Cartoon Fridays
624	CCG	Canadian Coast Guard,Collectible Card Game
625	CCGC	Canadian Coast Guard Cutter,Canadian Coast Guard College
626	CCGH	Canadian Coast Guard Hovercraft
627	CCGS	Canadian Coast Guard Ship,Christ Church Grammar School
628	CCH	Computer-Controlled Hostile
629	CCIF	Comité consultatif international des communications téléphoniques à grande distance (French for International Telephone Consultative Committee,merged with the CCIT in 1956 to form the CCITT)
630	CCII	Command and Control Information Infrastructure,Community Capital Investment Initiative
631	CCIR	Comité consultatif international pour la radio (French for Consultative Committee on International Radio,became the ITU Radiocommunication Sector,ITU-R,in 1992),Commander's Critical Information Requirements
632	CCIT	Comité consultatif international télégraphique (French for International Telegraph Consultative Committee,merged with the CCIF in 1956 to form the CCITT)
633	CCITT	Comité consultatif international téléphonique et télégraphique (French for International Telegraph and Telephone Consultative Committee,became the ITU Telecommunication Standardization Sector,ITU-T,in 1992)
634	CCK	Cholecystokinin,Cocos (Keeling) Islands (ISO 3166 trigram)
635	CCM	Canada Cycle & Motor Co. Ltd. (now split into two separate companies bearing the CCM name,one manufacturing bicycles and the other ice hockey equipment),Contemporary Christian music
636	CCOC	Canadian Children's Opera Chorus,Crosley Car Owners Club
637	CCOP	Coalition Common Operating/Operational Picture
638	CCP	Casualty Collection Point,Communications Checkpoint,Contingency Communications Package
639	CCPA	Consumer Credit Protection Act
640	CCR	Creedence Clearwater Revival
641	CCRAp	Canadian Conservative Reform Alliance party
642	CCRP	Command and Control Research Program
643	CCRTS	Command and Control Research and Technology Symposium
644	CCSCS	Consultative Committee for Space Data Systems
645	CCSCS	Coordinadora de Centrales Sindicales del Cono Sur
646	CCSIL	Command and Control Simulation Interface Language ('cecil')
647	CCSK	Cyclic Code Shift Keying
648	CCT	Current Commitments Team
649	Cd	Cadmium
650	cd	Candela
651	CD	Compact Disc
652	CD1	Cluster of Differentiation 1 (a small gene family)
653	CDA	UK Centre for Defence Analysis
654	CDD	Capabilities Development Document
655	CDE	Chemical Defence Equipment
656	CDIAC	Carbon Dioxide Information Analysis Center ('see-dee-ack')
657	CDipAF	Certified Diploma in Accounting and Finance
658	CDL	Commercial driver's license
659	CDM	Clean Development Mechanism (Kyoto protocol), Cold Dark Matter (astronomy)
660	CDMA	Code Division Multiple Access
661	CDMSII	Cryogenic Dark Matter Search II
662	Cdr	Commander
663	CDT	Central Daylight Time (UTC−5 hours)
664	Cdt	Commandant
665	Ce	Cerium
666	CE	Christian/Common Era
667	CEA	Campaign Effectiveness Analysis
668	CECOM	U.S. Army Communications and Electronics Command
669	CEDEX	Courrier d'entreprise à distribution exceptionnelle (French,'Company Mail with Exceptional Distribution'; 'exceptional' refers to the volume of mail)
670	CEGEP	Collège d'enseignement général et professionnel (French,'College of General and Vocational Education')
671	CEI	Competitive Enterprise Institute
672	CENTCOM	United States Central Command
673	CENTO	Central Treaty Organization (Baghdad Pact)
674	CENZUB	Centre d'entraînement aux actions en zone urbaine (French,'Urban Operations Training Centre')
675	CEO	Chief Executive Officer
676	CEP	Circular Error Probable
677	CEPT	Conférence européenne des administrations des postes et des télécommunications (French,'European Conference of Postal and Telecommunications Administrations')
678	CERCLA	U.S. Comprehensive Environmental Response,Compensation,and Liability Act (Superfund)
679	CERDEC	U.S. Communications-Electronics Research,Development and Engineering Center
680	CERGA	Centre de recherches en géodynamique et astrométrie (French,'Astrometry and Geodynamics Research Centre')
681	CERN	Centre européen pour la recherche nucléaire (French,'European Organization for Nuclear Research')
682	CERT	Computer Emergency Response Team
683	CESS	Centre for Earth Science Studies (India)
684	CEST	Central European Summer Time
685	CET	Central European Time
686	CEWC	Council for Education in World Citizenship
687	Cf	Californium
688	CF	Canadian Forces,Central African Republic (ISO 3166 digram),Republic of the Congo (FIPS 10-4 country code)
689	CFA	Cat Fanciers' Association,Chartered Financial Analyst,Colour Filtering Array,County Fire Authority,Covering Force Area
690	CFAR	Christine's,Federal Acquisition Regulation
691	CFC	ChloroFluoroCarbon,Canadian Fish Company
692	CFES	Continuous Flow Electrophoresis System
693	CFFZ	Call For Fire Zone
694	CFG	Context-free grammar,Control flow graph
695	CFHT	Canada-France-Hawaii Telescope
696	CFI	Center for Inquiry (CSICOP)
697	CFL	Canadian Football League,Co-ordinated Fire Line
698	CFLCC	Coalition Forces Land Component Command
699	CFM	Certified Facilities Manager
700	CFO	Chief Financial Officer
701	CFP	Call for papers, College Football Playoff, Common Fisheries Policy (EU)
702	CFR	Code of Federal Regulations,Căile Ferate Române (Romanian,'Romanian Railways')
703	CFRP	Carbon fibre reinforced plastic
704	CFS	Chronic Fatigue Syndrome
705	CFSP	Common Foreign and Security Policy
706	CFU	Colony Forming Unit in Microbiology
707	CFV	Cavalry Fighting Vehicle
708	CFZ	Critical Friendly Zone
709	CG	Client Group,Computer Graphics,Controls Group,Democratic Republic of the Congo (FIPS 10-4 country code),Republic of the Congo (ISO 3166 digram)
710	CGH	Comparative Genomic Hybridisation
711	CGIG	Cross-Government Implementation Group
712	CGO	Republic of the Congo (IOC and FIFA trigram,but not ISO 3166)
713	CGS	Chief of the General Staff
714	CGT	Capital Gains Tax
715	ch	ch(L) is used to denote the Chern character of a line bundle
716	CH	Chieftain tank,China (FIPS 10-4 country code),Switzerland (ISO 3166 digram; from Latin Confoederatio Helvetica)
717	CHAMPUS	(U.S.) Civilian Health and Medical Program of the Uniformed Services (now known as TRICARE)
718	CHAOS	Cambridge Heart Anti-Oxidant Study
719	CHAPS	Clearing House Automated Payment System
720	CHDK	Canon Hack Development Kit (Canon camera firmware hack)
721	CHE	Switzerland (ISO 3166 trigram; from Latin Confoederatio Helvetica)
722	CHI	Columbia Helicopters,Inc
723	CHiP	California Highway Patrol
724	CHIPS	Cosmic Hot Interstellar Plasma Spectrometer
725	CHL	Chile (ISO 3166 trigram)
726	CHLA	Core Historical Literature of Agriculture
727	CHN	China (ISO 3166 trigram)
728	CHOGM	Commonwealth Heads of Government Meeting
729	CHPSO	California Hospital Patient Safety Organization
730	CHRS	Canadian Heart Rhythm Society
731	CHT	Certified Hand Therapist
732	CI	Chile (FIPS 10-4 country code),Côte d'Ivoire (ISO 3166 digram),Counter-Intelligence,101 (in Roman numerals)
733	Ci	Curie
734	CIA	Cairo International Airport,Central Intelligence Agency,Culinary Institute of America
735	CIAO	Critical Infrastructure Assurance Office,Component-Integrated ACE ORB
736	CIB	Complete In Box (Internet auction/trading listings)
737	CIBC	Canadian Imperial Bank of Commerce
738	CID	Certified Interior Designer
739	CIEF	Comité international d'enregistrement des fréquences (International Frequency Registration Board)
740	CINC	Commander in Chief
741	CINEOS	Campo Imperatore Near-Earth Object Survey
742	CIPE	(European) Centre for International Political Economy
743	CIR	(Commander's) Critical Information Requirements
744	CIR	Corotating Interaction Region
745	CIS	Canadian Interuniversity Sport,Commonwealth of Independent States,Command and Information System,Communication and Information System
746	CISA	(U.S.) C4I Integration Support Activity
747	CISB	Complete In Sealed Box (Internet auction/trading listings)
748	CISPR	Comité international spécial des perturbations radioélectriques (Special International Committee on Radio Interference)
749	CISSP	Certified Information Systems Security Professional
750	CIV	Côte d'Ivoire (ISO 3166 trigram)
751	CIVPOP	Civilian Population
752	CIWS	Close-In Weapon System
753	CJ	Cayman Islands (FIPS 10-4 country code),Criminal Justice
754	CJC	Canadian Jewish Congress,Cold Junction Compensation
755	CJCS	Chairman of the Joint Chiefs of Staff
756	CJD	Chronological Julian Day,Creutzfeldt-Jakob Disease
757	CJO	Chief of Joint Operations
758	CJTF	Combined Joint Task Force
759	CK	Cocos (Keeling) Islands (FIPS 10-4 country code),Cook Islands (ISO 3166 digram)
760	CKA	commonly known as, Canada Kicks Ass
761	CKND	Codename: Kids Next Door
762	CL	Chile (ISO 3166 digram),Co-ordination Line,One Hundred and Fifty (in Roman numerals)
763	Cl	Chlorine
764	CLA	Clutterers Anonymous
765	CLEC	Competitive Local Exchange Carrier
766	CLEMARS	California Law Enforcement Mutual Aid Radio System
767	CLIC	Compact LInear Collider
768	CLO	Cornell Lab of Ornithology
769	CLOS	Command to Line-Of-Sight (missile control system)
770	CLPFC	CentroLateral PreFrontal Cortex
771	CLRP	College Loan Repayment Program
772	CM	Cameroon (FIPS 10-4 country code; ISO 3166 digram),Cruise Missile,Nine Hundred (in Roman numerals)
773	Cm	Curium
774	CMA	U.S. Chemical Materials Agency,Country Music Association (also used to refer to the organization's annual awards),Crystal Meth Anonymous
775	CMHC	Canada Mortgage and Housing Corporation
776	CMIIAW	Correct me if I am wrong
777	CMIS	Common management information service
778	CMJ	Christopher Martin-Jenkins (BBC sports commentator)
779	CMM	Capability Maturity Model
780	CMMC	Corps Materiel Management Centre
781	CMML	Chronic MyeloMonocytic Leukemia,Continuous Media Markup Language
782	CMOS	Canadian Meteorological and Oceanographic Society,(The) Chicago Manual of Style,Complementary Metal Oxide Semiconductor
783	CMP	Common [Operating/Operational] Maritime Picture
784	CMPD	Charlotte Mecklenburg Police Department
785	CMPD	Chronic Myeloproliferative Disease
786	CMR	Cameroon (ISO 3166 trigram),Coaxial Main Rotors (helicopter type)
787	CMS	Centers for Medicare and Medicaid Services,The Chicago Manual of Style
788	CMT	Country Music Television
789	CMU	Carnegie Mellon University,Central Michigan University,Concrete Masonry Unit
790	CMW	Marconi's Wireless Telegraph Company of Canada,Canadian Manufacturing Week,Canadian Music Week,Catherine McAuley Westmead (school in New South Wales,Australia),Chicago,Missouri and Western (Railway),Compartmented Mode Workstation,Compton's Most Wanted,Continuous Microwave (processing technology),Custom Maintenance Wizard (Microsoft Office Resource Kit)
791	CMYK	Cyan Magenta Yellow Key/blacK (colour model)
792	CN	Canadian National (railway; also the AAR reporting mark for said company),China (ISO 3166 digram),Comoros (FIPS 10-4 country code)
793	CNA	Center for Naval Analyses,Certified Network Administrator,Computer Network Attack,Continental (Casualty Company),National (Fire Insurance Company),and American (Casualty Company),the three companies that merged to form what is now known as CNA Financial
794	CNBC	Consumer News and Business Channel
795	CND	Campaign for Nuclear Disarmament,Computer Network Defence
796	CNE	Canadian National Exhibition,Computer Network Exploitation,Certified Network Engineer
797	CNF	Cost and Freight
798	CNI	Clinical Nursing Intern
799	CNI	Communications,Navigation and Identification
800	CNN	Cable News Network,Cellular Nonlinear Network
801	CNV	Copy-Number Variable (genetics)
802	Co	Cobalt
803	COB	Close Of Business [day]
804	COBRA	Consolidated Omnibus Budget Reconciliation Act of 1985
805	COD	Cash On Delivery,Democratic Republic of the Congo (ISO 3166 trigram)
806	CoDA	Co-Dependents Anonymous
807	COGENT	Cognitive Objects within a Graphical EnviroNmenT
808	COIL	Chemical Oxygen Iodine Laser
809	COK	Cook Islands (ISO 3166 trigram)
810	COL	Colombia (ISO 3166 trigram)
811	COLA	Cost Of Living Adjustment
812	CONAD	U.S. Continental Air Defense Command
813	CONUS	Continental United States
814	COO	Chief Operating Officer
815	COPE	U.K. Committee On Publication Ethics
816	COPUS	U.K. Committee on the Public Understanding of Science
817	CORD	Common Operational Requirements Document
818	CORE	Consortium for Oceanographic Research and Education
819	COS	Cooper Ornithological Society
820	COSER	COoperative SERvice
821	CoT	Car of Tomorrow (former NASCAR race car design)
822	COTS	Commercial Off The Shelf
823	CP	Canadian Pacific,Check Point,Command Post,Club Penguin
824	CPA	Certified Public Accountant
825	CPCU	Certified Property Casualty Underwriter
826	CPD	Capabilities Production Document
827	CPE	Certificate of Proficiency in English
828	CPE	Certified Professional Ergonomist
829	CPF	Calibration Parameter File,Canadian Patrol Frigate
830	CPG	Clinical Practice Guideline
831	CPIM	Certification on Production and Inventory Management
832	CPIR	Computationally-Private Information Retrieval
833	CPON	Certified Pediatric Oncology Nurse
834	CPPCC	Chinese People's Political Consultative Conference
835	CPR	Canadian Pacific Railway
836	CPR	Cardiopulmonary resuscitation
837	CPSM	Continuous Phase Shift Modulation
838	CPSU	Communist Party of the Soviet Union
839	CPT	Contingency Planning Team
840	CPU	Contract Postal Unit
841	CPV	Cape Verde (ISO 3166 trigram)
842	CPX	Command Post eXercise
843	CQ	Carrier Qualification,Central Queensland,Charge of Quarters,Congressional Quarterly,Constellation Airlines (IATA airline designator),Northern Mariana Islands (FIPS 10-4 territory code)
844	Cr	Chromium
845	CR	Coral Sea Islands (FIPS 10-4 territory code),Costa Rica (ISO 3166 digram)
846	CRAM	Combined Radiometric Correction Model
847	CRD	Capstone Requirements Document
848	CREB	Cyclic AMP-response Element Binding (protein)
849	CREEP	Committee for the Re-Election of the President,a pejorative nickname used by opponents
850	CREN	Christian Real Estate Network Real Estate Association
851	CRI	China Radio International,Costa Rica (ISO 3166 trigram)
852	CRIPL	Consolidated Remain-In-Place List
853	CRM	Cardiac Rhythm Management,Customer Relationship Management
854	CRO	Croatia (IOC and FIFA trigram,but not ISO 3166)
855	CRP	Committee for the Re-Election of the President,Control and Reporting Post
856	CRT	Cardiac Resynchronization Therapy,Cathode Ray Tube,Chinese Remainder Theorem
857	CRTC	Canadian Radio-television and Telecommunications Commission
858	Cs	Caesium
859	CSA	Canadian Soccer Association,Canadian Space Agency,Canadian Standards Association,Child Support Agency,Command Staff Advisor,Community-supported agriculture,Confederate States of America,Corps Storage Area,Czech Airlines,C/S/A,CINC,Service,and Agency
860	CSC	Closed Spacelike Curve (relativity),Compact system camera,Computer Sciences Corporation,Computer Security Centre,CSCC Canadian Society of Clinical Chemists
861	CSERIAC	(U.S. DoD) Crew Systems Ergonomics Information Analysis Center
862	CSG	Corps Support Group
863	CSI	see entry
864	CSICOP	Committee for the Scientific Investigation of Claims of the Paranormal (became the Committee for Skeptical Inquiry in 2006)
865	CSIP	Commercial Stable Image Platform (AMD)
866	CSK	Czechoslovakia (ISO 3166 trigram; obsolete since 1993)
867	CSL	U.K. Central Science Laboratory
868	CSPI	Center for Science in the Public Interest
869	CSR	Control Supply Rate
870	CSR	Corporate Social Responsibility
871	CSRC	Conflict Studies Research Centre
872	CSRF	Cross-Site Request Forgery
873	CST	Central Standard Time (UTC−6 hours)
874	CT	Computed tomography (medical scan also known as a CAT scan),Central Time zone,Chrono Trigger (Computer/Video games),Connecticut (postal symbol),Canterbury (postal symbol),Chhattisgarh (Indian state code)
875	CTBT	Comprehensive [Nuclear] Test Ban Treaty
876	CTDB	Compact Terrain Data Base (file format)
877	CTGF	connective tissue growth factor
878	CTI	Co-operative Target Identification
879	CTIL	Critical Tracked Items List
880	CTIS	Central Tire Inflation System
881	CTMS	Clinical Trial Management System
882	CTSS	Compatible Time-Sharing System
883	CTU	Counter Terrorist Unit (fictional branch of the Central Intelligence Agency in the television action series 24)
884	CTVT	Canine Transmissible Venereal Tumour
885	Cu	Copper (Latin Cuprum)
886	CUB	Cuba (ISO 3166 trigram)
887	CUCV	Commercial Utility Cargo Vehicle
888	CUPS	Common Unix Printing System
889	CUPW	Canadian Union of Postal Workers
890	CUREA	Consortium for Undergraduate Research and Education in Astronomy
891	CuW	Copper-tungsten pseudo-alloy (from the chemical symbols of the two component elements)
892	CUW	Curaçao (ISO 3166 trigram)
893	CV	curriculum vitae (résumé)
894	CVLL	Crypto Variable Logic Label
895	CVSD	Continuous Variable Slope Delta (modulation)
896	CVT	Continuously Variable Transmission
897	CW	Calendar Week, or: Continuous Wave, or: Clothes Washer, or: Cook Islands (FIPS 10-4 territory code)
898	CWC	Chemical Weapons Convention
899	CWRU	Case Western Reserve University
900	CWS	Canadian Wildlife Service
901	CX	Christmas Island (ISO 3166 digram),or: One Hundred and Ten (in Roman numerals)
902	CXR	Christmas Island (ISO 3166 trigram)
903	CY	Calendar year, or: Cyprus (ISO 3166 and FIPS 10-4 country code digram)
904	CYM	Cayman Islands (ISO 3166 trigram)
905	CZE	Czech Republic (ISO 3166 trigram)
906	CZF	(Christian Zombie Fan)
907	CZMA	(US) Coastal Zone Management Act
908	d	Deci
909	D	Deuterium
910	DAFIF	Digital Aeronautical Flight Information File
911	DAK	Disney's Animal Kingdom
912	DAO	Division Ammunition Officer
913	DARE	Drug Abuse Resistance Education
914	DARO	(U.S.) Defense Airborne Reconnaissance Office
915	DARPA	U.S. Defense Advanced Research Projects Agency
916	DAS	Defensive Aids Suite
917	DASD	(U.S.) Deputy Assistant Secretary of Defense
918	DASL	Datapoint's Advanced Systems Language
919	DAU	(U.S.) Defense Acquisition University
920	DAWN	(U.S.) Drug Abuse Warning Network
921	dB	Decibel
922	DB	Deutsche Bahn
923	Db	Dubnium
924	DBA	De Bellis Antiquitatis (miniature wargaming rules)
925	DBBL	(U.S. Army Simulation Center) Dismounted Battlespace Battle Laboratory
926	DBDO	Desert BDO
927	DBE	Dame Commander of the Order of the British Empire
928	DBF	Detection By Fire (weapon launch signature)
929	DBR	De Bellis Renationis (miniature wargaming rules)
930	DBRA	Davis-Bacon Related Acts
931	DBS	Direct Broadcast Services (television)
932	DCAA	(U.S.) Defense Contract Audit Agency
933	DCAS	Devon and Cornwall Archery Society
934	DCC	Dallas Christian College
935	DCD	[Organ] Donation after Cardiac Death
936	DCE	Data Communication Equipment
937	DCFC	Death Cab for Cutie
938	DCL	Disney Cruise Line
939	DCN	Deacon
940	DCOM	Disney Channel Original Movie
941	DCSOPS	Deputy Chief of Staff for Operations and plans
942	DCW	Digital Chart of the World
943	DCYSC	Discovery Channel Young Scientist Challenge
944	DD	due diligence and dear daughter (increasingly prevalent on social mailing lists,blogs,and bulletin boards)
945	DDA	Deputy District Attorney
946	DDN	U.S. Defense Data Network
947	DDS	Doctor of Dental Surgery
948	DEA	Drug Enforcement Administration
949	DEA	Drug Enforcement Agency
950	DeCA	(U.S.) Defense Commissary Agency
951	DEFCON	Defence readiness condition
952	DELT	Dual Ended Line Test (ing)
953	DEPSECDEF	(U.S.) Deputy Secretary of Defense
954	DERA	British Defence Evaluation and Research Agency (1995-2001)
955	DES	Deep Ecliptic Survey
956	DEU	Germany (ISO 3166 trigram)
957	DFAS	(U.S.) Defense Finance and Accounting Service
958	DFCB	Data Format Control Book
959	DfID	UK Department for International Development
960	DFM	Discrete Field Model see Superluminal motion
961	DFM	Dynamic Flowgraph Methodology
962	DFSP	Dermatofibrosarcoma protuberans
963	DfT	UK Department for Transport
964	DGPS	Differential GPS
965	DGZ	Desired Ground Zero
966	DHA	DocosaHexaenoic Acid
967	DHHS	(U.S.) Department of Health and Human Services
968	DHRA	(U.S.) DoD Human Resources Activity
969	DHS	U.S. Department of Homeland Security
970	DHSS	UK Department of Health and Social Security
971	DHTFYSS	U.S. Don't Have Time For You Silly S****
972	DHY	Dahomey (ISO 3166 trigram; became BEN for Benin in 1977)
973	DIA	U.S. Defense Intelligence Agency
974	DIAC	Department of Immigration and Citizenship (Australia) [1]
975	DiC	Design Island Centre (computing usually used in a teaching situation)
976	DICASS	DIrectional Command Activated Sonobuoy System
977	DIFAR	DIrectional Frequency Analysis and Recording
978	DIME	Dense Inert Metal Explosive
979	DIP	Dual In-line Package (electronics)
980	DIPS	Defense independent pitching statistics
981	DIR	Defence Industrial Research
982	DISCOM	Division Support Command
983	DISE	Deployable Intelligence Support Element
984	DISSTAF	DIS Search and Target Acquisition Fidelity experiment
985	DITY	Do-It-Yourself
986	DIVAD	Division Air Defence
987	DIY	Do It Yourself
988	DJI	Djibouti (ISO 3166 trigram)
989	DK	Denmark (ISO 3166 digram)
990	DL	Dexter's Laboratory
991	DLIC	Detachment Left-In-Contact
992	DLIR	Depot-Level Inspection and Repair
993	DLPMC	DorsoLateral PreMotor Cortex
994	DLRP	Data Link Reference Point
995	DLS	Deep Lens Survey
996	DLSA	(U.S.) Defense Legal Services Agency
997	DLSc	Diploma in Library Science
998	DLTBGYD	Don't let the bastards grind you down
999	DMC	(U.S.) Defense Management Council
1000	DMCA	Digital Millennium Copyright Act
1001	DMM	Digital Multimeter
1002	DMOC	Distributed Mission Operations Centre
1003	DMPA	(U.S.) Defense Medical Programs Activity
1004	DMPFC	DorsoMedial PreFrontal Cortex
1005	DMPK	Drug Metabolism and Pharmacokinetics
1006	DMRB	Design Manual for Roads and Bridges
1007	DMS	U.S. Defense Message System
1008	DMSP	U.S. Defense Meteorological Satellite Program
1009	DMT	Dimethyltryptamine
1010	DMV	Department of Motor Vehicles
1011	DMZ	DeMilitarized Zone
1012	DN	Deacon
1013	DNAW	Day Night All Weather
1014	DNDi	Drugs for Neglected Diseases initiative
1015	DNDO	U.S. Domestic Nuclear Detection Office
1016	DNK	Denmark (ISO 3166 trigram)
1017	DNM	Defence Nuclear Material
1018	DNR	Do Not Resuscitate
1019	DNS	Domain Name System
1020	DOB	Date Of Birth
1021	DOD	U.S. Department of Defense
1022	DODAF	U.S. Department of Defense Architectural Framework
1023	DoDD	U.S. Department of Defense Directive
1024	DoDEA	(U.S.) Department of Defense Education Activity
1025	DOE	U.S. Department of Energy
1026	DOHC	Dual-OverHead-Cam engine
1027	DOI	U.S. Department of the Interior
1028	DORA	Defence of the Realm Act
1029	DOS	Density of State
1030	DOTA	short-form for DEFENSE OF THE ANCIENTS a popular online epic game
1031	DotD	Deal of the Day (marketing gimmick)
1032	DOW	Died of Wounds
1033	DP	Division de production (Algerian petroleum company)
1034	DPA	UK Defence Procurement Agency
1035	DPCO	Double-Pole Change Over
1036	DPDT	Double-Pole Double-Throw
1037	DPI	Dots Per Inch
1038	DPICM	Dual-Purpose Improved Conventional Munition
1039	DPKO	UN Department for Peacekeeping Operations
1040	DPMO	(U.S.) Defense Prisoner of War/Missing Personnel Office
1041	DPPDB	Digital Point Positioning Database
1042	DPRK	Democratic People's Republic of Korea
1043	DPST	Double-Pole Single-Throw
1044	DRC	Democratic Republic of the Congo
1045	DRDC	Defence Research & Development Canada
1046	DREA	Defence Research Establishment Atlantic (obsolete 2002)
1047	DRES	Defence Research Establishment Suffield (obsolete 2002)
1048	DRET	Defence Research Establishment Toronto (obsolete 2002)
1049	DREV	Defence Research Establishment Valcartier (obsolete 2002)
1050	DRIC	(U.S.) Defense Research Information Center
1051	DRMS	(U.S.) Defense Revitalization and Marketing Service
1052	DRPR	Drawing Practices
1053	DRT	Document Related Technologies
1054	Ds	Darmstadtium
1055	DSAS	Disney Sing Along Songs
1056	DSB	(U.S.) Defense Science Board
1057	DSCS	U.S. Defense Satellite Communications System
1058	DSCSOC	DSCS Operations Center
1059	DSE	Dry Sheep Equivalent
1060	DSG	Direct-Shift Gearbox
1061	DSID	Dismounted Soldier Identification System
1062	DSL	Digital Subscriber Line
1063	DSLR	Digital single-lens reflex (camera)
1064	DSM	Diagnostic and Statistical Manual of Mental Disorders
1065	DSN	Deep Space Network
1066	DSPL	Design Specialists and Plans Language
1067	DSR	Deformed Special Relativity
1068	DST	Daylight Saving Time
1069	DSTL	British Defence Science and Technology Laboratory
1070	DSWA	(U.S.) Defense Special Weapons Agency
1071	DTA	Dental Technologists Association
1072	DTD	Digital Terrain Data
1073	DTG	Date-Time Group
1074	DTH	Direct To Home (television)
1075	DTI	UK Department of Trade and Industry
1076	DTIC	(U.S.) Defense Technical Information Center
1077	DTL	Diode-Transistor Logic (electronics)
1078	DTMF	Dual-tone multi-frequency signaling
1079	DTO	Disruptive Technology Office (was ARDA)
1080	DTR	Determine The Relationship
1081	DTSA	(U.S.) Defense Technology Security Administration
1082	DUMBO	Down Under the Manhattan Bridge Overpass (Brooklyn neighborhood)
1083	DUSD	(U.S.) Deputy Under-Secretary of Defense
1084	DVLC	UK Driver and Vehicle Licencing Centre
1085	DVM	Doctor of Veterinary Medicine
1086	DVO	Direct View Optics
1087	DVOM	Digital Volt-Ohm Meter
1088	DVP	various meanings (disambiguation page)
1089	DW	Drum Workshop
1090	DWIM	Do What I Mean
1091	DWM	Doctor Who Magazine
1092	DWTS	Dancing with the Stars
1093	DWW	Down with Webster
1094	DXA	Dual-energy X-ray Absorptiometry
1095	DXM	DeXtroMethorphan
1096	DY	Dahomey (ISO 3166 digram; obsolete since 1977)
1097	Dy	Dysprosium
1098	DZA	Algeria (ISO 3166 trigram)
1099	E	East
1100	EABU	Explain Acronyms Before Use
1101	EAC	Echelons Above Corps
1102	EAPC	Euro-Atlantic Partnership Council
1103	EAST	Experimental Advanced Superconducting Tokamak
1104	EBD	Electronic Brake Distribution
1105	EBE	Extraterrestrial Biological Entity
1106	EBSA	Employee Benefits Security Administration
1107	EBW	Electron Beam Welding
1108	EBW	Exploding BridgeWire
1109	ECASS	European Centre for Analysis in the Social Sciences [1]
1110	ECBR	European Coalition for Biomedical Research
1111	ECCM	Electronic Counter-Counter-Measures
1112	ECFS	Electronic Case Filing System
1113	ECG	Electrocardiogram
1114	ECHR	European Convention on Human Rights
1115	ECJ	European Court of Justice
1116	ECL	Emitter Coupled Logic (electronics)
1117	ECommHR	European Commission on Human Rights
1118	ECSC	European Coal and Steel Community (distant ancestor of the EU)
1119	ECT	ElectroConvulsive Therapy
1120	ECtHR	European Court of Human Rights
1121	EDA	European Defence Agency
1122	EDAC	Error Detection And Correction
1123	EDCS	Environmental Data Coding Specification
1124	EDH	Eastman Dental Hospital
1125	EDSA	Epifanio de los Santos Avenue (a major thoroughfare in Manila with great significance to post-1980 Philippines history)
1126	EDT	Eastern Daylight Saving Time (UTC−4 hours)
1127	EEC	European Economic Community (predecessor of the EU)
1128	EEG	ElectroEncephaloGram
1129	EENT	End Evening Nautical Twilight
1130	EEO	Equal Employment Opportunity
1131	EEOC	(U.S.) Equal Employment Opportunity Commission
1132	EEZ	Economic Exclusion Zone or Exclusive Economic Zone
1133	EFF	Electronic Frontier Foundation
1134	EFL	English as a Foreign Language
1135	EFM	Enterprise Feedback Management
1136	EFOA	European Fuel Oxygenates Association
1137	EFSA	European Food Safety Authority
1138	EFT	Electronic Fund Transfer
1139	EFV	Expeditionary Fighting Vehicle
1140	EG	Egypt (ISO 3166 digram; FIPS 10-4 country code)
1141	EGCG	EpiGalloCatechin-3-Gallate
1142	EGIS	Erieye Ground Interface Segment
1143	EGRET	Energetic Gamma-Ray Experiment Telescope
1144	EGY	Egypt (ISO 3166 trigram)
1145	EHF	Extremely High Frequency
1146	EHR	Equipment History Record
1147	Ei	Exbi
1148	EI	Ireland (FIPS 10-4 country code; from Éire)
1149	EIA	Environmental Impact Assessment
1150	EIAH	Encyclopedia of Iranian Architectural History
1151	EIAH	Environnements Informatiques pour l'Apprentissage Humain
1152	EIC	East India Company
1153	EICS	East India Company's Service
1154	eID	electronic ID
1155	EIRP	Effective Isotropic Radiated Power
1156	EIS	Environmental Impact Statement
1157	EJ	Exajoule
1158	EKG	Electrocardiogram (from German Elektrokardiogramm)
1159	EKMS	Electronic Key Management System
1160	EL	Exalitre
1161	ELINT	Electronic Intelligence
1162	ELL	English Language Learner
1163	ELM	Edge-Localised Mode (plasma physics)
1164	ELO	Electric Light Orchestra
1165	ELSS	Emergency Life Support Stores
1166	EM	ElectroMagnetism/ElectroMagnetic
1167	Em	Exametre
1168	EMA	European Medicines Agency
1169	EMCON	(Electromagnetic) Emissions Control
1170	EMDG	Euro-Missile Dynamics Group
1171	EMDR	Eye Movement Desensitisation and Reprocessing
1172	EMEA	Europe,Middle East and Africa
1173	EMG	ElectroMyoGraph
1174	EMP	ElectroMagnetic Pulse
1175	EMS	Emergency Medical Services
1176	EMT	Emergency Medical Technician
1177	ENCODE	Encyclopedia of DNA Elements (human genome data project)
1178	ENE	East North-East
1179	ENG	England (FIFA trigram; not eligible for an ISO 3166 or IOC trigram)
1180	ENTEC	Euro NATO Training Engineer Centre
1181	ENVL	Envelope
1182	ENY	Enemy
1183	EOD	Explosive Ordnance Disposal
1184	EOG	ElectroOculoGraphy
1185	EOM	End of Message
1186	EOSAT	Earth Observation Satellite
1187	EOSDIS	Earth Observation Satellite Data and Information System
1188	EP	European Parliament
1189	EP	Extended play
1190	EPCOT	Experimental Prototype Community Of Tomorrow
1191	EPGS	EOS Polar Ground Sites
1192	EPIRB	Emergency Position Indicating Radio Beacon
1193	EPL	English Premier League
1194	EPOS	Electronic Point Of Sale
1195	EPPA	Employee Polygraph Protection Act
1196	EPR	European Pressurised [Nuclear] Reactor
1197	EQ	Emotional Quotient
1198	Er	Erbium
1199	ERCIM	European Research Consortium for Informatics and Mathematics
1200	ERI	Eritrea (ISO 3166 trigram)
1201	ERLAWS	Eastern Ruapehu Lahar Alarm and Warning System
1202	EROS	Earth Resources Observation System
1203	ERP	Engineer Regulating Point
1204	ERR	Eesti Rahvusringhääling
1205	ERS	Earth Resources Survey
1206	ERTS	Earth Resources Technology Satellite (became Landsat)
1207	ERV	Endogenous RetroVirus
1208	ESD	ElectroStatic Discharge
1209	ESDP	European Security and Defence Policy
1210	ESE	East South-East
1211	ESH	Western Sahara (ISO 3166 trigram)
1212	ESL	English as a Second Language
1213	ESM	Electronic warfare Support Measures
1214	ESO	European Southern Observatory
1215	ESOL	English for Speakers of Other Languages
1216	ESPN	Entertainment and Sports Programming Network
1217	ESU	Emergency Services Unit
1218	ESV	Engineer Support Vehicle
1219	ET	Ethiopia (ISO 3166 digram; FIPS 10-4 country code)
1220	ETH	Ethiopia (ISO 3166 trigram)
1221	ETI	Extra-Terrestrial Intelligence
1222	ETLA	Extended TLA
1223	ETT	Embedded Training Team
1224	Eu	Europium
1225	EUCOM	(U.S.) European Command
1226	EUUSA	European Union and United States of America
1227	EV	Exavolt
1228	EVIL	Electronic viewfinder (with) interchangeable lens (a type of digital camera)
1229	EWTN	Eternal Word Television Network
1230	Exatesla	Extra Terrestrial
1231	EXREP	Expeditious Repair (SM&R code)
1232	f	Femto
1233	fA	Femtoampere
1234	FA	Food Addicts in Recovery Anonymous
1235	FAA	Financial Aid Administrator,Fleet Air Arm,Functional Area Analysis
1236	FAAD	Forward Area Air Defence
1237	FAADEZ	Forward Area Air Defence Engagement Zone
1238	FAAFP	Fellow of the American Academy of Family Physicians
1239	FAAN	Fellow of the American Academy of Neurology
1240	FAAN	Fellow of the American Academy of Nursing
1241	FAAQ	Frequently Asked and Anticipated Questions
1242	FAASV	Field Artillery Ammunition Supply Vehicle
1243	FAB	Feline Advisory Bureau (UK feline charity)
1244	FACA	(US) Federal Advisory Committee Act
1245	FACH	Fuerza Aérea de Chile
1246	FACN	Fellow of the American College of Nutrition
1247	FACP	Fellow of the American College of Physicians
1248	FACTS	Flexible Alternating Current Transmission System
1249	FAM	Foreign Affairs Manual
1250	FAO	Food and Agriculture Organization
1251	FAPA	Fellow of the American Psychological Association
1252	FAPHA	Fellow of the American Public Health Association
1253	FARP	Forward Arming and Refuelling Point / Forward Area Rearm/refuel Point
1254	FASCAM	Family of Scatterable Mines[1]
1255	FASD	Fetal Alcohol Spectrum Disorder
1256	FASEB	Federation of American Societies for Experimental Biology
1257	FAT	Field Artillery Tractor
1258	FAVS	Future Armoured Vehicle System
1259	FAW	Football Association of Wales
1260	FBCS	Fellow of the British Computer Society
1261	FBIDST	Fellow of the British Institute of Dental and Surgical Technologists
1262	FBIS	Foreign Broadcast Information Service
1263	FBM	Board foot
1264	fC	Femtocoulomb
1265	FCC	U.S. Federal Communications Commission
1266	FCE	First Certificate in English
1267	FCF	Financial Free Cash Flow
1268	FCLA	Fraud Claims Law Associate
1269	FCO	UK Foreign and Commonwealth Office
1270	FCW	Florida Championship Wrestling
1271	FD	Falun Dafa
1272	FDA	Food and Drug Administration (U.S.)
1273	FDBK	(I) Feedback
1274	Fe	Iron (Latin Ferrum)
1275	FEAST	Forum for European-Australian Science and Technology Cooperation
1276	FEATS	Festival of European Anglophone Theatrical Societies link title
1277	FEBA	Forward Edge of the Battle Area
1278	FED	Field Emission Display
1279	FEDEP	Federation Development Process (Simulation)
1280	FEF	Frontal Eye Field (neurophysiology)
1281	FEMA	Farm Equipment Manufacturers Association, U.S. Federal Emergency Management Agency,Fire Equipment Manufacturers' Association
1282	FENS	Federation of European Neuroscience Societies
1283	FES	Flywheel Energy Storage
1284	FEST	Frankfurt English Speaking Theatre link title
1285	FET	Field-effect transistor
1286	FEZ	Fighter Engagement Zone
1287	fF	Femtofarad
1288	FF	Final Fantasy
1289	FFB	Frum From Birth (referring to an observant Jew born into a religiously observant family)
1290	FFC	Free For Chat
1291	FFE	Fukuoka Futures Exchange
1292	FFF	Fédération française de football (French for: French Football Federation)
1293	FFG	Guided Missile Frigate (hull classification symbol)
1294	FFOV	Forward Field Of View
1295	FFR	Fédération française de rugby (French for: French Rugby (Union) Federation)
1296	FFS	For Fuck's Sake
1297	FFT	Final Fantasy Tactics
1298	FG	Falun Gong
1299	fg	Femtogram
1300	FG	Fog (METAR Code), French Guiana (FIPS 10-4 territory code)
1301	FGOTUS	First Gentleman of the United States
1302	FGR	Flickr Group Roulette
1303	fH	Femtohenry
1304	FHFIF	Foster's Home for Imaginary Friends
1305	FHI	Family Health International, Fuji Heavy Industries,Ltd.
1306	FI	Finland (ISO 3166 digram; FIPS 10-4 country code)
1307	FIAT	Fabbrica Italiana Automobili Torino (Italian for: Italian Car Factory of Turin)
1308	FIB	Fucking Illinois Bastard (Wisconsin slang, variants exist)
1309	FIBUA	Fighting In Built-Up Areas
1310	FIC	Fellowship for Intentional Community
1311	FID	Foreign Internal Defence
1312	FIE	Fly-In Echelon
1313	FIFA	Fédération internationale de football association (French for: International Association Football Federation)
1314	FIFe	Fédération internationale féline (French for: International Feline Federation)
1315	FIFO	First In, First Out
1316	FIFRA	Federal Insecticide, Fungicide, and Rodenticide Act
1317	FIGJAM	Fuck I'm Good, Just Ask Me
1318	FIMPT	Fellow of the Institute of Maxillofacial Prosthetists and Technologists
1319	FIN	Finland (ISO 3166 trigram)
1320	FINA	Fédération internationale de natation (French for: International Swimming Federation)
1321	FIRES	Fever Induced Refractory Epilepsy Syndrome or Febrile Infection-Related Epilepsy Syndrome
1322	FIS	Fédération internationale de ski (French for: International Ski Federation)
1323	FISA	Fédération Internationale des Sociétés d'Aviron (French for: International Federation of Rowing Associations)
1324	FISH	Fluorescence In-Situ Hybridisation
1325	FiST	Fire Support Team
1326	FITS	Flexible Image Transport System
1327	FIU	Florida International University
1328	fJ	Femtojoule
1329	FJ	Fiji (ISO 3166 digram; FIPS 10-4 country code)
1330	FJI	Fiji (ISO 3166 trigram)
1331	FJN	Financial Job Network
1332	FK	Falkland Islands (ISO 3166 digram; FIPS 10-4 territory code)
1333	fK	Femtokelvin
1334	FKSM	Fort Knox Supplemental Manual
1335	FKT	Fastest Known Time
1336	fL	Femtolitre
1337	FL	Florida (postal symbol)
1338	fl	floruit (Latin for: living) (genealogy)
1339	FLA	Florida,Front Line Assembly,Future Large Aircraft
1340	FLAB	Four-letter abbreviation
1341	FLAC	Free Legal Advice Centres
1342	FLAC	Free Lossless Audio Codec
1343	FLAK	Flug-Abwehr-Kanone (German for: Anti-Aircraft Guns)
1344	FLB	Forward Logistics Base
1345	FLET	Forward Line of Enemy Troops
1346	FLG	Falun Gong
1347	FLIP	Flight Information Publication
1348	FLIR	Forward Looking InfraRed (sensor)
1349	FLK	Falkland Islands (ISO 3166 trigram)
1350	FLOT	Forward Line of Own Troops
1351	FLOTUS	First Lady of the United States (the wife of the President of the United States)
1352	FLQ	Free Legal Questions
1353	FLQ	Front de libération du Québec (French for: Québec Liberation Front)
1354	FLSA	Fair Labor Standards Act
1355	FLTSAT	Fleet Satellite
1356	FLTSATCOM	Fleet Satellite Communication System
1357	FLUBOS	Fat, Lazy, Useless, Bag Of Shit
1358	FM	Factory Mutual
1359	FM	Federal Magistrate (Australian post-nominal),Federated States of Micronesia (postal symbol; ISO 3166 digram; FIPS 10-4 territory code),Field Manual,Flight Manager,Frequency Modulation (electronics)
1360	fm	Femtometre
1361	Fm	Fermium
1362	FMC	Federal Magistrates' Court (an Australian federal court,formerly FMS),Food Machinery Corporation (original name of the company now known as FMC Corporation)
1363	FMCA	Federal Magistrates' Court of Australia (used for citing decisions of the FMC other than family law decisions)
1364	FMCAfam	Federal Magistrates' Court of Australia: family (used for citing family law decisions of the FMC)
1365	FMCG	Fast Moving Consumer Goods
1366	FME	Formal Methods Europe
1367	FMECA	Failure Modes and Effect Criticality Analysis
1368	FMJD	Fédération Mondiale du Jeu de Dames
1369	FMLA	Family Medical Leave Act
1370	FoE	Friends of the Earth
1371	FOGC	Federal Oil and Gas Council
1372	FOH	Front Of House
1373	FOIA	Freedom of Information Act
1374	FOM	Federation Object Model
1375	FONSI	Finding of No Significant Impact
1376	FOO	Forward Observation Officer
1377	FOOP	Friends Of Organ Pipes (Volunteer group)
1378	FoS	Family of Systems
1379	FOSE	Fallout 3 Script Extender
1380	FOSE	Federal Office Systems Expo
1381	FOT	Free on truck
1382	FOTA	Fellow of the Orthodontic Technicians Association
1383	FOTC	Flight of the Conchords
1384	FOUO	For Official Use Only
1385	FP	French Polynesia (FIPS 10-4 territory code)
1386	FPF	Federação Portuguesa de Futebol (Portuguese for: Portuguese Football Federation), Final Protective Fire
1387	FPS	Fire Prevention System
1388	FQ	Baker Island (FIPS 10-4 territory code),French Southern and Antarctic Territories (ISO 3166 digram; obsolete 1979)
1389	FR	France (FIPS 10-4 country code; ISO 3166 digram)
1390	Fr	Francium
1391	FRA	Federal Railroad Administration, France (ISO 3166 trigram)
1392	FRAND	Fair,reasonable,and non-discriminatory (concept in standards-setting and intellectual property law)
1393	FRCP	Federal Rules of Civil Procedure,Fellow of the Royal College of Physicians
1394	FRICBM	Full Range ICBM
1395	FRO	Faroe Islands (ISO 3166 trigram)
1396	FRS	Fellow of the Royal Society, U.S. Federal Reserve System
1397	FRSA	Fellow of the Royal Society of Art
1398	FRY	Federal Republic of Yugoslavia
1399	fs	Femtosecond
1400	fS	Femtosiemens
1401	FSA	Fire Support Area, UK Food Standards Agency, Functional Solution Analysis
1402	FSC	Federal Supply Classification, Forest Stewardship Council (ecological pressure group)
1403	FSCL	Fire Support Co-ordination Line
1404	FSE	Fire Support Element
1405	FSF	Free Software Foundation
1406	FSH	Follicle Stimulating Hormone
1407	FSI	Fuel Stratified Injection
1408	FSS	Fire Support Station
1409	FSSP	Families of Structurally Similar Proteins
1410	FSTC	Foreign Science Technology Center (now NGIC)
1411	fT	Femtotesla
1412	FTC	Federal Trade Commission
1413	FTE	Full Time Equivalent
1414	FTL	Faster Than Light
1415	FTS	Flight Termination System used during some rocket launches
1416	FTS	Fuck That Shit
1417	FU	Smoke (METAR Code)
1418	FUBAR	Fucked/Fouled Up Beyond All Recognition/Repair
1419	fV	Femtovolt
1420	fW	Femtowatt
1421	FW	Forward
1422	FWC	Football World Cup
1423	FWF	Fixed Word Format
1424	FWI	French West Indies
1425	FWIW	For What It's Worth
1426	FWS	U.S. Fish and Wildlife Service
1427	FWT	Fresh Water Tank
1428	FXX	Metropolitan France (ISO 3166 trigram; obsolete 1997)
1429	FYA	For Your Agenda
1430	FYDP	Five-Year Defense Plan (U.S.)
1431	FYI	For Your Information
1432	FYROM	Former Yugoslav Republic of Macedonia
1433	FZDZ	Freezing Drizzle (METAR Code)
1434	FZFG	Freezing Fog (METAR Code)
1435	FZRA	Freezing Rain (METAR Code)
1436	g	Gram
1437	G3	Heckler & Koch G3
1438	GAAR	General Anti-Avoidance Rule (tax evasion)
1439	GAB	Gabon (ISO 3166 trigram)
1440	GABA	Gamma-AminoButyric Acid
1441	GAD	Generalized Anxiety Disorder
1442	GAF	Garfield and Friends
1443	GAO	U.S. Government Accountability Office
1444	GAW	Global Atmospheric Watch
1445	GBBC	Great (Global) Backyard Bird Count
1446	GBE	Knight/Dame Grand Cross of the Order of the British Empire
1447	GBR	United Kingdom of Great Britain and Northern Ireland (ISO 3166 trigram)
1448	GCA	Graduate in Claims Administration
1449	GCD	see entry
1450	GCF	Greatest Common Factor
1451	GCI	Ground-controlled interception
1452	GCN	Gamma-ray burst Coordination Network
1453	GCS	Global Coordinate System
1454	GCSE	General Certificate of Secondary Education (UK)
1455	Gd	Gadolinium
1456	GD	Grenada (ISO 3166 digram)
1457	GDL	Game Definition Language
1458	GDR	General Distribution Release (Microsoft Term for a software service release; between Hotfix and Service Pack)
1459	GDR	German Democratic Republic (cf. DDR)
1460	GDW	Game Designers Workshop
1461	Ge	Germanium
1462	GEBCO	General Bathymetric Chart of the Oceans
1463	GEC	Great Engineering Challenge
1464	GED	General Educational Development (high school equivalency credential in the U.S. and Canada)
1465	GEEP	Geophysical Equipment Exploration Platform
1466	GEN	Full General (four stars) in the U.S. Army
1467	GeV	Gigaelectron-volt
1468	GEV	Ground Effect Vehicle
1469	GFCI	Ground Fault Circuit Interruptor (aka GFI)
1470	GFI	Ground Fault Interruptor (aka GFCI)
1471	GFL	German Football League (Germany's Bundesliga for American football; the English-language name is used in German without translation)
1472	GFN	Global Footprint Network
1473	GG	Georgia (FIPS 10-4 country code)
1474	GGK	Good God Karma
1475	GHA	Ghana (ISO 3166 trigram)
1476	GHB	gamma-Hydroxybutyric acid
1477	Gi	Gibi
1478	GIB	Gibraltar (ISO 3166 trigram)
1479	GIG	Global Information Grid
1480	GINO	Godzilla In Name Only
1481	GISS	General Impression of Size and Shape,Goddard Institute for Space Studies
1482	GJD	Geocentric Julian Day
1483	GLAAD	Gay and Lesbian Alliance Against Defamation
1484	GLAC	General Ledger Accounting Code
1485	GLAST	Gamma-ray Large Area Space Telescope
1486	GLBA	Gramm-Leach-Bliley Act
1487	GLC	Gas-liquid chromatography
1488	GLP	Guadeloupe (ISO 3166 trigram)
1489	GLV	Gained Life Value
1490	Gm	Gigametre
1491	GM	The Gambia (ISO 3166 digram),GameMaster (role-playing),General Motors,Genetically Modified,Germany (FIPS 10-4 country code),Guru Meditation (computing)
1492	GMAC	General Motors Acceptance Corporation,the original name of the company now known as Ally Financial,Graduate Management Admission Council,G-MAC,Great Midwest Athletic Conference
1493	GMB	The Gambia (ISO 3166 trigram),General,Municipal,Boilermakers (and Allied Trade Union)
1494	GMFSC	Ground Mobile Forces Satellite Communications
1495	GMO	Genetically Modified Organism
1496	GMPCS	Global Mobile Personal Communications by Satellite
1497	GNAS	Grand National Archery Society
1498	GNB	Guinea-Bissau (ISO 3166 trigram)
1499	GNP	Gross National Product
1500	GNQ	Equatorial Guinea (ISO 3166 trigram)
1501	GnRH	Gonadotropin-Releasing Hormone
1502	GO	Glorioso Islands (FIPS 10-4 territory code)
1503	GOA	General of the Army (United States only)
1504	GOAT	Greatest Of All Time
1505	GOC	General Officer Commanding
1506	GOES	Geostationary Operational Environmental Satellite
1507	GOP	Grand Old Party
1508	gorp	granola,oats,raisins,peanuts (another name for trail mix),probably a backronym
1509	GOSC	General Officer Steering Committee
1510	GOSH	Great Ormond Street Hospital
1511	GOSP	Gas/Oil Separation Plant
1512	GOTS	Government off-the-shelf
1513	GOYADIN	Get Off Your Arse,Do It Now (anti-procrastination mantra)
1514	GP	General Practitioner,General Purpose,Grand Prix,Guadeloupe (ISO 3166 digram; FIPS 10-4 territory code)
1515	GPA	Grade Point Average
1516	GPC	Global Path Cache
1517	GPIB	General-Purpose Instrumentation/Interface Bus
1518	GPO	General Post Office
1519	GPPC	Genetics and Public Policy Center
1520	GPR	Ground-Penetrating Radar
1521	GPS	General Problem Solver,Global Positioning System
1522	GPT	General Purpose Technology, Get paid to surf (an online business model)
1523	GQ	Equatorial Guinea (ISO 3166 digram),Gentlemen's Quarterly (the original name of the magazine now known simply as GQ),Guam (FIPS 10-4 territory code),GR[edit]
1524	GR	Greece (FIPS 10-4 country code; ISO 3166 digram),Hail (METAR Code)
1525	GRAIL	Gravity Recovery and Interior Laboratory
1526	GRAS	Generally recognized as safe (FDA list)
1527	GRB	Gamma-Ray Burst
1528	GRC	Greece (ISO 3166 trigram)
1529	GRD	Grenada (ISO 3166 trigram)
1530	GRE	Graduate Record Examination,Greece (IOC and FIFA trigram,but not ISO 3166)
1531	grep	[search] Globally for Regular Expression,Print [lines]
1532	GRID	Gay-Related Immune Deficiency (original name of AIDS)
1533	GRid	Global Release Identifier,a music industry identifier from the RIAA and IFPI
1534	GriT	Girl raised in Texas (Woman presenting firm southern traits/beliefs)
1535	GRL	Greenland (ISO 3166 trigram)
1536	GRN	Grenada (IOC and FIFA trigram,but not ISO 3166),Goods Received Note
1537	Gs	Gigasecond
1538	GSA	U.S. General Services Administration
1539	GSD	Graphical Situation Display
1540	GSGB	(God send glamour boy 9-10/10)
1541	GSK	GlaxoSmithKline [good sexual karma]
1542	GSN	Game Show Network
1543	GSO	General Services Officer (U.S. Department of State)
1544	GSOH	Good Sense Of Humour
1545	GSP	Georges St-Pierre (Canadian MMA fighter)
1546	GSR	Gun Shot Residue
1547	GSS	Generic Security Services
1548	GSW	Gunshot wound
1549	GTD	Getting Things Done
1550	GTG	Got To Go (Internet chat)
1551	GTGN	Getty Thesaurus of Geographic Names
1552	GTK	Good To Know (Internet chat)
1553	GTM	Guatemala (ISO 3166 trigram)
1554	GU	Guam (postal symbol; ISO 3166 digram)
1555	GUF	French Guiana (ISO 3166 trigram)
1556	GUILT	Gangliated Utrophin Immuno Latency Toxin
1557	GULCR	Grupo de Usuarios de Linux de Costa Rica
1558	GUT	Grand Unification Theory
1559	GWARS	Ground Warfare System (simulation)
1560	GWAS	Grand Western Archery Society
1561	GWOT	Global War on Terrorism
1562	GXE	Gene-enivronment interaction
1563	GXM	Matrox Graphics eXpansion Module
1564	GY	Guyana (FIPS 10-4 country code; ISO 3166 digram)
1565	GZK	Greisen-Zatsepin-Kuzmin cut-off (cosmic ray energies)
1566	h	Hecto
1567	HAARP	High Frequency Active Auroral Research Program
1568	HAART	Highly Active Anti-Retroviral Therapy
1569	HAI	Human Awareness Institute
1570	HAL	Hardware Abstraction Layer
1571	HALO	High Altitude Low Opening (parachute jump)
1572	HAM	Amateur radio operator
1573	HANS	Head And Neck Support (device used in many race cars)
1574	HARM	High-speed Anti-Radiation Missile
1575	HAW	Heavy Antitank Weapon
1576	HAWK	Homing All the Way Killer (air defence system)
1577	HAZ	Heat-Affected Zone
1578	HAZMAT	Hazardous Materials
1579	HBCD	HexaBromoCycloDodecane
1580	HBO	Home Box Office
1581	HBR	Harvard Business Review
1582	HBT	Heterojunction Bipolar Transistor
1583	HBV	Hepatitis B Virus
1584	HCCI	Homogeneous Charge Compression Ignition
1585	HCF	Highest Common Factor
1586	HCSC	Higher Command and Staff Course
1587	HDL	High-Density Lipoprotein
1588	HDM	Human Decision-Making
1589	HDRA	Henry Doubleday Research Association
1590	He	Helium
1591	HE	High Explosive
1592	HEAT	High Explosive Anti-Tank (ammunition)
1593	HEBA	Hellenic Basketball Clubs Association
1594	HEER	High-Explosive Extended Range (ammunition)
1595	HEIC	Honourable East India Company
1596	HEMP	High-Altitude Electromagnetic Pulse
1597	HEOSS	High Earth Orbit Space Surveillance
1598	HEP	High-Explosive Plastic (ammunition)
1599	HEPA	High-Efficiency Particulate Air (filter)
1600	HESV	Heavy Engineering Support Vehicle
1601	HETT	Heavy Equipment Transporting Truck / Heavy Equipment Truck Tractor
1602	HEU	Highly Enriched Uranium
1603	Hf	Hafnium
1604	HF	High Frequency
1605	HFE	Human Fertilisation and Embryology (UK Act)
1606	HFE	The common-emitter current gain in a BJT transistor (also represented by βF). See: BJT
1607	HFEA	Human Fertilisation and Embryology Authority (UK)
1608	Hg	Mercury (Latin Hydrargyrum)
1609	HGC	UK Human Genetics Commission
1610	HGF	Human Growth Factor
1611	HGTV	Home & Garden Television
1612	HI	Hawaii (postal symbol)
1613	HIH	His (or Her) Imperial Highness
1614	HIM	His (or Her) Imperial Majesty
1615	HIMAD	High to Medium Altitude Air Defence (see also H/MAD)
1616	HIMEZ	High Altitude Missile Engagement Zone
1617	HIMYM	How I Met Your Mother
1618	HIPAA	U.S. Health Insurance Portability and Accountability Act
1619	Hipparcos	HIgh Precision Parallax COllecting Satellite
1620	Hird	Hurd of interfaces representing depth (cf. HURD)
1621	HiRISE	High Resolution Imaging Science Experiment
1622	HIT	Health Information Technology
1623	HIV	Human Immunodeficiency Virus
1624	HIWT	Hobart Institute of Welding Technology
1625	HJD	Heliocentric Julian Day
1626	HK	Hong Kong (ISO 3166 digram; FIPS 10-4 territory code)
1627	HKG	Hong Kong (ISO 3166 trigram)
1628	HKS	HyperKinetic Syndrome
1629	hL	Hectolitre
1630	HL	Holding Line
1631	HLL	High-Level Language
1632	HLN	Headline News
1633	HLOS	High Level Output Specification
1634	HM	Heard Island and McDonald Islands (ISO 3166 digram; FIPS 10-4 territory code)
1635	HMCE	Her/His Majesty's Customs and Excise (former UK government department; succeeded by HM Revenue and Customs)
1636	HMD	Heard and McDonald Islands (ISO 3166 trigram)
1637	HMF	HydroxyMethyl Furfural
1638	HMO	Health maintenance organization
1639	HMP	Her Majesty's Prison
1640	HMRC	Her/His Majesty's Revenue and Customs
1641	HMSO	Her Majesty's Stationery Office
1642	HMV	His Master's Voice
1643	HN	Honduras (ISO 3166 digram)
1644	HND	Honduras (ISO 3166 trigram)
1645	Ho	Holmium
1646	HO	Honduras (FIPS 10-4 country code)
1647	HOLLAND	Hope Our Love Lasts And Never Dies
1648	HOSTAC	Helicopter Operations from Ships Other Than Aircraft Carriers
1649	HOT	Highly Optimised Tolerance
1650	HOTAS	Hands on throttle-and-stick
1651	HOV	High Occupancy Vehicle
1652	hp	horse power
1653	HPA	UK Health Protection Agency
1654	HPCL	Hindustan Petroleum Corporation Limited
1655	HPLC	High Performance Liquid Chromatography
1656	HPT	High[er] Payoff Target
1657	HPV	Human Papilloma Virus
1658	HRBL	High-level Representation of Behavior Language (original name of the Herbal language)
1659	HRD	Human Resource Development
1660	HRF	High iness Forces
1661	HRH	His (or Her) Royal Highness
1662	HRM	His (or Her) Royal Majesty
1663	HRM	Human Resource Management
1664	HRT	Hormone Replacement Therapy
1665	Hs	Hassium
1666	HSBC	The Hong Kong and Shanghai Banking Corporation
1667	HSC	Higher School Certificate
1668	HSM	High School Musical
1669	HSMAD	Human Science/Modeling and Analysis Data
1670	HSN	Home Shopping Network
1671	HSPH	Harvard School of Public Health
1672	HSSI	High-Speed Serial Interface
1673	HST	see entry
1674	HTA	HyperText Application
1675	HTFU	Harden The Fuck Up
1676	HTH	Hope That Helps
1677	HTI	Haiti (ISO 3166 trigram)
1678	HTML	HyperText Markup Language
1679	HTR	Heated Towel Rail
1680	HTS	High-Temperature Superconducting wire
1681	HTTP	HyperText Transfer Protocol
1682	HU	Hungary (ISO 3166 digram; FIPS 10-4 country code)
1683	HUHA	Head up his/her ass (Marine salute; probably a backcronym)
1684	HUN	Hungary (ISO 3166 trigram)
1685	HURD	Hird of Unix-Replacing Daemons (cf. Hird)
1686	HV	Upper Volta (ISO 3166 digram; obsolete 1984)
1687	HVAP	High Velocity Armour Piercing (ammunition)
1688	HVHF	High velocity human factors
1689	HVM	High Velocity Missile
1690	HVO	Upper Volta (ISO 3166 trigram; obsolete 1984)
1691	HWM	Hardware morphing (computer graphics rendering)
1692	HXB	The glycoprotein Tenascian C
1693	HZ	Haze (METAR Code)
1694	Hz	Hertz
1695	IA	Iowa (postal symbol)
1696	IAAL	I Am A Lawyer
1697	IAB	International Association for Biologicals
1698	IAD	Ion Assisted Deposition
1699	IADS	Integrated Air Defence System
1700	IAEA	International Atomic Energy Agency
1701	IAF	{i} Industrial Areas Foundation
1702	IAFG	Information Assurance Focus Group
1703	IANA	Internet Assigned Numbers Authority
1704	IANAL	I Am Not A Lawyer
1705	IAS	Image Assessment System
1706	IASIP	It's Always Sunny in Philadelphia
1707	IATA	International Air Transport Association
1708	IATF	International Automotive Task Force
1709	IATSE	International Alliance of Theatrical Stage Employees
1710	IAUC	International Astronomical Union Circular
1711	IAW	In Accordance With
1712	IB	International Baccalaureate
1713	IBA	Important Bird Area
1714	IBD	Inflammatory Bowel Disease
1715	IBDM	Information Based Decision Making
1716	IBM	International Business Machines
1717	IBRD	International Bank for Reconstruction and Development (part of the World Bank)
1718	IBS	Irritable Bowel Syndrome
1719	ICANN	Internet Corporation for Assigned Names and Numbers
1720	ICAO	International Civil Aviation Organization
1721	ICBM	Intercontinental Ballistic Missile
1722	ICBN	International Code of Botanical Nomenclature
1723	ICE	In case of emergency
1724	ICES	International Council for the Exploration of the Sea
1725	ICF	Intelligent Community Forum
1726	ICMP	Internet Control Message Protocol
1727	ICNAF	International Commission for the Northwest Atlantic Fisheries (became NAFO in 1978)
1728	ICO	Intermediate Circular Orbit
1729	ICPE	International Conference on Pharmacoepidemiology,the annual conference of the International Society for Pharmacoepidemiology
1730	ICRAF	International Centre for Research in Agroforestry (a.k.a. World Agroforestry Centre since 2002)
1731	ICRISAT	International Crops Research Institute for the Semi-Arid Tropics
1732	ICRL	Individual Component Repair List
1733	ICRS	International Celestial Reference System
1734	ICSI	Intracytoplasmic Sperm Injection
1735	ICT	Information and communication technologies
1736	ICTH	Island Closest to Heaven/Hell Final Fantasy VIII
1737	ICV	Infantry Carrier Vehicle
1738	ICYMI	In Case You Missed It
1739	IDC	International Data Corporation
1740	IDDI	I don't do initialisms (see irony)
1741	IDGAF	I don't give a fuck
1742	IDK	I don't know
1743	IDL	Interface Definition Language
1744	IDN	Indonesia (ISO 3166 trigram)
1745	IEA	International Energy Agency
1746	IEC	International Electrotechnical Commission
1747	IED	Improvised Explosive Device
1748	IELTS	International English Language Testing System
1749	IER	Information Exchange Requirement
1750	IET	Initial Entry Training
1751	IET	Institution of Engineering and Technology
1752	IETF	Internet Engineering Task Force
1753	IEW	Intelligence and Electronic Warfare
1754	IFAB	International Football Association Board
1755	IFAH	International Federation for Animal Health
1756	IFAP	International Federation of Agricultural Producers
1757	IFO	Identified Flying Object (see also UFO)
1758	IFOV	Instantaneous Field of View
1759	IFPI	International Federation of Phonographic Industries
1760	IFRB	International Frequency Registration Board
1761	IFV	Infantry Fighting Vehicle
1762	IG	Inspector General
1763	IGNOU	Indira Gandhi National Open University
1764	IGS	International Ground Station
1765	IHH	Idiopathic Hypogonadotropic Hypogonadism
1766	IHO	International Hydrographic Organization
1767	IHR	Institute for Historical Review
1768	IHSI	Institutum Historicum Societatis Iesu (Jesuit Historical Institute)
1769	II	Two (in Roman numerals)
1770	IICA	Inter-American Institute for Cooperation on Agriculture
1771	IIE	Innovative Interstellar Explorer
1772	III	Three (in Roman numerals)
1773	IIRC	If I Recall/Remember Correctly
1774	IISS	International Institute for Strategic Studies
1775	IJN	Imperial Japanese Navy (World War II)
1776	IJWP	Interim Joint Warfare Publication
1777	ILDS	Improved Landmine Detection System
1778	ILO	International Labour Organization
1779	ILRI	International Livestock Research Institute
1780	ILY	I Love You [pronounced ILL-LEE]
1781	IMBD	International Migratory Bird Day
1782	IMDb	Internet Movie Database
1783	IME	In My Experience
1784	IMHO	In My Humble/Honest Opinion
1785	IML	International Mister Leather
1786	IMNSHO	In My Not So Humble Opinion
1787	IMPAC	International Merchant Purchase Authorization Card
1788	IMPACT	International Medical Products Anti-Counterfeiting Taskforce
1789	IMPATT	IMPact Avalanche Transit Time diode
1790	IMPT	Institute of Maxillofacial Prosthetists and Technologists
1791	IMRL	Individual Material iness List
1792	IMRO-Internal Macedonian Revolutionary Organization	Irish Music Rights Organisation
1793	IMsL	International Ms. Leather
1794	IMT	Integrated Management Tool
1795	IMU	International Mathematical Union
1796	In	Indium
1797	INA	Immigration and Nationality Act
1798	INAS	International Near-Earth Asteroid Survey
1799	INCITS	InterNational Committee for Information Technology Standards
1800	IND	India (ISO 3166 trigram)
1801	INDIGO	(U.S.) INtelligence DIvision Gaming Operation
1802	inet	the Internet
1803	INFORMS	(U.S.) Institute for Operations Research and the Management Sciences
1804	INFOSEC	Information Security
1805	INLA	Irish National Liberation Army
1806	INMARSAT	International Maritime Satellite organization
1807	INRIA	Institut national de recherche en informatique et en automatique
1808	INS	Immigration and Naturalization Service
1809	InSAR	Interferometric synthetic aperture radar
1810	INST	Information Standards and Technology
1811	INTERFET	International Force for East Timor
1812	INTSUM	Intelligence Summary
1813	IO	British Indian Ocean Territory (ISO 3166 digram; FIPS 10-4 territory code)
1814	IOT	British Indian Ocean Territory (ISO 3166 trigram)
1815	IPB	Intelligence Preparation of the Battlefield
1816	IPL	Inferior Parietal Lobule
1817	IPO	Initial Public Offering
1818	IPT	Integrated Product/Project Team
1819	IPTS	Institute for Prospective Technological Studies
1820	IPTV	Internet Protocol TeleVision
1821	IPW	Interrogation of Prisoners of War
1822	Ir	Iridium
1823	IRAD	Internal Research and Development
1824	IRAN	(I) Inspect and Repair As Necessary
1825	IRAS	Infrared Astronomical Satellite
1826	IRB	International Rugby Board
1827	IRBM	Intermediate Range Ballistic Missile
1828	IREA	Intermountain Rural Electric Association
1829	IRINN	Islamic Republic of Iran News Network
1830	IRL	Ireland (ISO 3166 trigram),Industrial Research Limited,Indy Racing League,In real life
1831	IRN	Iran (ISO 3166 trigram)
1832	IRO	International Refugee Organisation
1833	IRQ	Iraq (ISO 3166 trigram)
1834	IRS	U.S. Internal Revenue Service
1835	IRST	Infra-red Search and Track
1836	ISAAA	International Service for the Acquisition of Agri-biotech Applications
1837	ISAR	Inverse SAR (Synthetic Aperture Radar)
1838	ISB	Intermediate Staging Base
1839	ISBN	International Standard Book Number (ISO 2108)
1840	ISCCP	International Satellite Cloud Climatology Project
1841	ISCII	Indian Standard Code for Information Interchange
1842	ISDN	Integrated Services Digital Network
1843	ISEF	Intel International Science and Engineering Fair
1844	ISEN	Internet Search Environment Number
1845	ISF	Internal Security Force
1846	ISIL	Islamic State of Iraq and the Levant
1847	ISIS	Institute for Science and International Security, or: Islamic State of Iraq and Syria
1848	ISL	Iceland (ISO 3166 trigram)
1849	ISLN	International Standard Lawyer Number (used initially by LexisNexis Martindale-Hubbell)
1850	ISMB	International Society of Matrix Biologists
1851	ISMC	Intelligent Sounding Meaningless Conversation
1852	ISOGP	Indian Society of Orthodontics for General Practitioners [2]
1853	ISPE	International Society for Pharmacoepidemiology
1854	ISRO	Indian Space Research Organisation
1855	ISSCR	International Society for Stem Cell Research
1856	ISSN	International standard serial number (ISO 3297)
1857	ISTC	Institute of Scientific and Technical Communications (UK)
1858	ISTS	Intel Science Talent Search
1859	ITA	Italy (ISO 3166 trigram)
1860	ITAG	Inertial Terrain-Aided Guidance
1861	ITALY	I'll Truly Always Love You
1862	ITAS	Improved Target Acquisition Sight
1863	ITC	InferoTemporal Cortex (neurophysiology)
1864	ITCZ	Intertropical Convergence Zone
1865	ITEC	Information Technology Exposition & Conference
1866	ITEMS	Interactive Tactical Environment Management System
1867	ITER	International Thermonuclear Experimental Reactor
1868	ITF	International Tennis Federation
1869	ITK	In The Know
1870	ITN	Independent Television News (British)
1871	ITT	International Telephone and Telegraph (U.S.)
1872	ITTO	International Tropical Timber Organization
1873	IUCN	International Union for the Conservation of Nature and Natural Resources (World Conservation Union)
1874	Iveco	Industrial Vehicles Corporation
1875	IVF	In Vitro Fertilisation
1876	IVI	Interchangeable Virtual Instrument
1877	IVIS	Inter-Vehicle Information System
1878	IVL	Inter-Visibility Line
1879	IVM	In Vitro [Oocyte] Maturation
1880	IVO	In Vicinity Of
1881	IW	Information Warfare
1882	IWARS	Infantry Warrior Simulation
1883	IWC	International Whaling Commission
1884	IWW	Industrial Workers of the World
1885	IX	Nine (in Roman numerals)
1886	IXT	IntraText digital library; IntraText lexical hypertext
1887	IY	Saudi-Iraqi neutral zone (FIPS 10-4 territory code; obsolete 1993)
1888	IZ	Iraq (FIPS 10-4 country code)
1889	J	Joule
1890	J1	Joint [Manpower &] Personnel Directorate
1891	J2	Joint Intelligence Directorate
1892	J3	Joint Operations Directorate
1893	J4	Joint Logistics Directorate
1894	J5	Joint Strategic Plans & Policy Directorate
1895	J7	Joint Operational Plans & Interoperability Directorate
1896	JA	Japan (FIPS 10-4 country code)
1897	JAFT	Just A Field Test
1898	JAL	Japan Airlines
1899	JALLC	Joint Analysis and Lessons Learned Centre (NATO)
1900	JAM	Jamaica (ISO 3166 trigram)
1901	JAMA	Journal of the American Medical Association
1902	JANET	Joint Academic Network
1903	JATO	Jet-Assisted Take-Off
1904	JB	Jail Bait
1905	JB	Junior Branch
1906	JBFSA	Joint Blue Force Situational Awareness
1907	JCDB	Joint Common Data Base
1908	JCDS	Joint Chiefs of the Defence Staff
1909	JCIDS	Joint Capabilities Integration and Development System
1910	JCL	Job Control Language
1911	JCP	Java Community Process
1912	JCS	Joint Chiefs of Staff
1913	JCW	Juggalo Championship Wrestling
1914	JDBC	Java Data Base Connectivity
1915	JDEM	Joint Dark Energy Mission
1916	JDL	Jewish Defense League
1917	JE	Jersey (FIPS 10-4 territory code)
1918	JEFX	Joint Expeditionary Force eXperiment
1919	JET	Joint European Torus
1920	JEZ	Joint Engagement Zone
1921	JFACC	Joint Force Air Component Commander
1922	JFACTSU	U.S. Joint Forward Air Control Training and Standards Unit
1923	JFC	Joint Force Commander
1924	JFK	John Fitzgerald Kennedy or the airport named after him.
1925	JFLCC	Joint Force Land Component Commander
1926	JFMCC	Joint Force Maritime Component Commander
1927	JFO	Journal of Field Ornithology
1928	JFSOCC	Joint Force Special Operations Component Commander
1929	JFTX	Joint Field Training Exercise
1930	JH	Japan Highway Public Corporation
1931	JH	Jharkhand (Indian state code)
1932	JI	Joint Implementation
1933	JIB	Joint Information Bureau
1934	JIC	Joint Intelligence Centre
1935	JINI	Java Intelligent Network Infrastructure
1936	JITC	Joint Interoperability Test Command
1937	JIVE	Joint Institute for VLBI (Very Long Baseline Interferometry) in Europe
1938	JJAP	Japanese Journal of Applied Physics
1939	JL	Japan Airlines (IATA airline designator)
1940	JLA	Justice League of America
1941	JM	Jamaica (FIPS 10-4 country code; ISO 3166 digram)
1942	JMS	Java Message Service
1943	JN	Jan Mayen Island (FIPS 10-4 territory code)
1944	JNI	Java Native Interface
1945	JNLP	Java Network Launch Protocol
1946	JO	Jordan (FIPS 10-4 country code; ISO 3166 digram)
1947	JOA	Joint Operations Area
1948	JOPES	Joint Operations Planning and Execution System
1949	JOR	Jordan (ISO 3166 trigram)
1950	JOTS	Joint Operations Tactical System
1951	JPL	Jet Propulsion Laboratory
1952	JPN	Japan (ISO 3166 trigram)
1953	JPOW	Joint Project Optic Windmill
1954	JRDF	Joint Rapid Deployment Forces
1955	JRE	Java Runtime Environment
1956	JREF	James Randi Educational Foundation
1957	JROC	Joint Requirements Oversight Council
1958	JROCM	JROC Memorandum
1959	JRRF	Joint Rapid Reaction Force
1960	JRSAI	Journal of the Royal Society of Antiquaries of Ireland
1961	JSAP	Japan Society of Applied Physics
1962	JSCSC	Joint Services Command and Staff College
1963	JSEAD	Joint Suppression of Enemy Air Defence (see SEAD)
1964	JSF	Joint Strike Fighter
1965	JSIMS	Joint Simulation System
1966	JSOA	Joint Special Operations Area
1967	JSOTF	Joint Special Operations Task Force
1968	JSP	JavaServer Page
1969	JSP	Joint Services Publication
1970	JSR	Java Specification Request
1971	JSS	Joint Support Ship Project
1972	JTC	Joint Training Confederation
1973	JTF	Joint Task Force
1974	JTFEX	Joint Task Force Exercise
1975	JTLS	Joint Theater Level Simulation
1976	JTMD	Joint Theatre Missile Defence
1977	JTN	Johnston Atoll (ISO 3166 trigram; obsolete 1986)
1978	JU	Juan de Nova Island (FIPS 10-4 territory code)
1979	JUGFET	JUnction Gate Field-Effect Transistor
1980	JUICE	JUpiter ICy Moon Explorer
1981	JUO	Joint Urban Operations
1982	JV	Joint Venture,Junior Varsity
1983	JW	Jehovah's Witnesses
1984	JWARS	Joint Warfare System (simulation)
1985	JWP	Joint Warfare Publication
1986	JY	Japanese Yen
1987	JZ	Joint Zone
1988	K	Kelvin,Potassium (Latin Kalium),Tanker (aircraft designation code)
1989	k	Kilo-
1990	K	picokelvin
1991	K9	Canine Police Unit
1992	Ka	Kamov Design Bureau
1993	kA	Kiloampere
1994	KA	Knowledge Acquisition,Karnataka (Indian state code)
1995	KAF	Kandahar Air Field
1996	KANUKOKA	Kalaallit Nunaanni Kommunit Kattuffiannit (Kalaallisut, Greenlandic Communities Association
1997	KARNAC	Knowledge Aided Retrieval in Activity Context
1998	KARR	Knight Automated Roving Robot (Knight Rider character)
1999	KATUSA	Korean Augmentation To United States Army
2000	KAZ	Kazakhstan (ISO 3166 trigram)
2001	KBE	Knight Commander of the Order of the British Empire
2002	KBO	Kuiper Belt Object
2003	KBVB	Koninklijke Belgische Voetbalbond (Dutch for Royal Belgian Football Association)
2004	kC	Kilocoulomb
2005	KCK	Kansas City,Kansas,Koma Civakên Kurdistan (Kurdish, Union of Communities in Kurdistan)
2006	KCL	King's College London
2007	KCMO	Kansas City,Missouri (pronounced: K-C-Moe)
2008	KCS	Kansas City Southern Railway (AAR reporting mark)
2009	KD	Kawasaki Disease,Kraft Dinner
2010	KE	Kenya (FIPS 10-4 country code; ISO 3166 digram),Kinetic Energy,Knowledge Engineering
2011	KEDO	Korean Peninsula Energy Development Organization
2012	KEN	Kenya (ISO 3166 trigram)
2013	KERA	Kentucky Education Reform Act (of 1990)
2014	kerma	Kinetic Energy Released in MAterial / in MAtter / per unit MAss
2015	KESR	Kent and East Sussex Railway.
2016	KET	Kentucky Educational Television,Key English Test
2017	kF	Kilofarad
2018	KFC	Kentucky Fried Chicken
2019	KFOR	UN Kosovo Force
2020	KFUPM	King Fahd University of Petroleum & Minerals
2021	KG	Kyrgyzstan (FIPS 10-4 country code; ISO 3166 digram)
2022	KGO	Knight of the Guelphic Order of Hanover
2023	KGZ	Kyrgyzstan (ISO 3166 trigram)
2024	KH	Cambodia (ISO 3166 digram)
2025	kH	Kilohenry
2026	KHL	Kontinental Hockey League
2027	KHM	Cambodia (ISO 3166 trigram)
2028	KHz	Kilohertz
2029	Ki	Kibi
2030	KI	Kiribati (ISO 3166 digram)
2031	KIA	Killed In Action
2032	KIDS	Knowledge-based Integrated Design System
2033	KIR	Kiribati (ISO 3166 trigram)
2034	KISS	Keep It Simple,Stupid / Keep It Short and Simple,Korean Intelligence Support System
2035	KIT	Keep In Touch
2036	KITECH	Korean Institute of Industrial Technology
2037	KITT	Knight Industries Two Thousand, Knight Industries Three Thousand
2038	kJ	Kilojoule
2039	kK	Kilokelvin
2040	KKK	Ku Klux Klan
2041	kL	Kilolitre
2042	KLENOT	KLEť Observatory Near Earth and Other unusual objects observations Team and Telescope
2043	KLOC	Kilo Lines Of Code
2044	KM	Comoros,Knowledge Management
2045	kN	Kilonewton
2046	KNA	Saint Kitts and Nevis (ISO 3166 trigram)
2047	KNVB	Koninklijke Nederlandse Voetbal Bond (Dutch for Royal Dutch Football Association)
2048	KO	Knocked Out
2049	KOR	Republic of Korea (ISO 3166 trigram)
2050	KP	Kim Possible
2051	KPMG	Klynveld,Peat,Marwick,Goerdeler
2052	KPNO	Kitt Peak National Observatory
2053	KQ	Kenya Airways (IATA airline designator), Kingman Reef (FIPS 10-4 territory code)
2054	KR	Kiribati (FIPS 10-4 country code), Republic of Korea (ISO 3166 digram)
2055	Kr	Krypton
2056	KS	Kansas (postal symbol), Republic of Korea (FIPS 10-4 country code)
2057	kS	Kilosiemens
2058	KSC	Kennedy Space Center
2059	KSI	Killed or Seriously Injured
2060	KSU	Kansas State University
2061	KT	Christmas Island (FIPS 10-4 territory code), Knight of the Order of the Thistle, Knights Templar
2062	kT	Kilotesla
2063	KTS	Knight of the Tower and Sword (of Portugal)
2064	KU	Kuwait (FIPS 10-4 country code)
2065	KUW	Kuwait (UNDP country code,IOC and FIFA trigram,but not ISO 3166)
2066	kV	Kilovolt
2067	KV	Kosovo
2068	kW	Kilowatt
2069	KW	Kuwait (ISO 3166 digram)
2070	KWB	Kids' WB!
2071	KWT	Kuwait (ISO 3166 trigram)
2072	KX	Cayman Airways (IATA airline designator)
2073	KY	Cayman Islands (ISO 3166 digram), Kentucky (postal symbol)
2074	KZ	Kazakhstan (FIPS 10-4 country code; ISO 3166 digram)
2075	KZN	KwaZulu-Natal
2076	La	Lanthanum
2077	LA	Laos (FIPS 10-4 country code; ISO 3166 digram), Louisiana (postal symbol), Los Angeles
2078	LAAS	Local Area Augmentation System, Los Angeles Astronomical Society
2079	LAB	Logistics Assault Base
2080	LabVIEW	Laboratory Virtual Instrumentation Engineering Workbench
2081	LACMA	Los Angeles County Museum of Art
2082	LAD	Laser Aiming Device
2083	LADW	Local Air Defence Warning
2084	LAESI	Local Authority & Emergency Service Information
2085	LAN	Local Area Network
2086	LANL	Los Alamos National Laboratory
2087	LAO	Laos (ISO 3166 trigram)
2088	LAR	Light Armoured Reconnaissance, Logistics Assistance Representative
2089	LARC	Livermore Advanced Research Computer (cf. LLNL)
2090	LARP	Live-Action Role-Playing
2091	Laser	Light Amplification by Stimulated Emission of Radiation (cf. Maser)
2092	LAT	Lowest Astronomical Tide (nautical charts),Licensed Athletic Trainer (used in many of the United States; see www.oata.org)
2093	LATA	Local Access Transport Area
2094	LATCH	Lower Anchors and Tethers for Children (U.S. standard for attachment points for child safety seats in passenger cars)
2095	LAV	Land Assault Vehicle, Light Armoured Vehicle, Lymphadenopathy-Associated Virus
2096	LAW	Light Antitank Weapon
2097	LAX	Los Angeles International Airport, The Latin American Xchange (professional wrestling)
2098	LB	Lebanon (ISO 3166 digram)
2099	LBH	Light Battlefield Helicopter, Lyman-Birge-Hopfield bands
2100	LBJ	Lady Bird Johnson,LeBron James,Light Bulb Joke,Little Beagle Johnson (the dog owned by Lyndon and Lady Bird Johnson),Lyndon Baines Johnson
2101	LBN	Lebanon (ISO 3166 trigram)
2102	LBNL	Lawrence Berkeley National Laboratory
2103	LBR	Liberia (ISO 3166 trigram)
2104	LBS	Location-Based Services
2105	LBT	Large Binocular Telescope
2106	LBW	Leg Before Wicket
2107	LBY	Libya (ISO 3166 trigram)
2108	LCA	Saint Lucia (ISO 3166 trigram)
2109	LCC	Land Component Commander
2110	LCCP	Light Contingency Communications Package
2111	LCD	Liquid Crystal Display
2112	LCM	Least/Lowest Common Multiple
2113	LCS	League of Legends Championship Series
2114	LDA	Lateral Drift Apparatus (paratroops)
2115	LDC	Lesser Developing/Developed Country
2116	LDL	Low-Density Lipoprotein
2117	LDV	Local Defence Volunteers (British Home Guard)
2118	LDW	Lane Departure Warning (ADAS)
2119	LE	Lebanon (FIPS 10-4 country code)
2120	LEC	Local Exchange Carrier
2121	LED	Light-Emitting Diode
2122	LEGAD	Legal Advice
2123	Legs	level emotion gad speed
2124	LEMOSS	Long-Endurance MObile Submarine Simulator
2125	LEN	Large Extension Node
2126	LEP	Large Electron-Positron collider
2127	LER	Loss-Exchange Ratio
2128	LEU	Low-Enriched Uranium
2129	LF	Low Frequency
2130	LFO	Low Frequency Oscillation / Oscillator
2131	LFTR	Liquid fluoride thorium reactor
2132	LG	Latvia (FIPS 10-4 country code)
2133	LGM	Little Green Men
2134	LGS	Landsat Ground Station
2135	LHC	Large Hadron Collider
2136	LHS	Left Hand Side
2137	Li	Lithium
2138	LIBOR	London Interbank Offered Rate
2139	LIBS	Laser Induced Breakdown Spectroscopy
2140	LIE	Liechtenstein (ISO 3166 trigram)
2141	LIGO	Laser Interferometer Gravitational-Wave Observatory
2142	LINEAR	Lincoln Near-Earth Asteroid Research
2143	LISA	Laser Interferometer Space Antenna
2144	LIVE	Liquid Inertial Vibration Eliminator
2145	LJJ	Lord Justices of Appeal
2146	LK	Sri Lanka (ISO 3166 digram)
2147	LKA	Sri Lanka (ISO 3166 trigram)
2148	LKR4	Linkwitz-Riley 4th order (audio crossover type)
2149	LLAD	Low Level Air Defence
2150	LLB	Legum Baccalaureus (Latin: Bachelor of Laws)
2151	LLC	Limited Liability Company
2152	LLLTV	Low-Light Level Television
2153	LLNL	Lawrence Livermore National Laboratory
2154	LLP	Limited Liability Partnership
2155	LLTR	Low-Level Transit Route
2156	LMAO	Laughing My Ass Off (Internet shorthand)
2157	LMB	Lick My Balls
2158	LMFAO	Laughing My F**king Ass Off (Internet shorthand,electro-hop duo)
2159	LMN	Lifetime Movie Network
2160	LMS	Like My Status (Internet shorthand)
2161	LMV	() Light Motor Vehicle
2162	LNER	London and North Eastern Railway
2163	LNG	Liquefied Natural Gas
2164	LNO	Liaison Officer
2165	LO	Slovakia (FIPS 10-4 country code)
2166	LOA	Limit Of Advance
2167	LOC	Level of Operational Capability,Limited Operational Capability,Lines Of Code,Lines Of Communication,see entry
2168	LoD	Lines of Development (UK)
2169	LOFAR	Low Frequency Analysis and Recording
2170	LOGPAC	Logistics Package
2171	LOL	Laughing Out Loud (Internet shorthand)
2172	LOMEZ	Low Altitude Missile Engagement Zone
2173	LONEOS	Lowell Observatory Near-Earth-Object Search
2174	LORTID	LOng Range Target IDentification
2175	LOS	Line Of Sight
2176	LOSAT	Line-Of-Sight Anti-Tank (missile)
2177	LOTA	Licentiate of the Orthodontic Technicians Association
2178	LOTIS	Livermore Optical Transient Imaging System
2179	LOTS	Logistics Over-The-Shore
2180	LPC	Linear Predictive Coding
2181	LPG	Liquefied Petroleum Gas (cf. LNG)
2182	LPI	Low Probability of Intercept
2183	LQ	Palmyra Atoll (FIPS 10-4 territory code)
2184	Lr	Lawrencium
2185	LR	Liberia (ISO 3166 digram)
2186	LRC	Logistics iness Center
2187	LRGW	Long-Range Guided Weapon
2188	LRICBM	Limited Range ICBM
2189	LRIP	Low Rate Initial Production
2190	LRP	Logistics Release Point
2191	LRPE	Long-Range Planning Element
2192	LRS	Long Range Surveillance
2193	LRU	Line-Replaceable Unit
2194	LSI	Large-Scale Integration
2195	LSIF	Labour Sponsored Investment Fund
2196	LSND	Liquid Scintillator Neutrino Detector
2197	LSO	Lesotho (ISO 3166 trigram)
2198	LSST	Large Synoptic Survey Telescope
2199	Lt	Lieutenant
2200	LtC	Lieutenant-Colonel (U.S.)
2201	LTC	Long-Term Costing
2202	Ltd	Limited
2203	LTDP	Long-Term Defence Plan
2204	LTI	Linear Time-Invariant
2205	LTM	Acronym for Laughing To Myself
2206	LTP	Long-Term Potentiation
2207	LTU	Lithuania (ISO 3166 trigram)
2208	LU	Acronym Love You
2209	LU	Loonatics Unleashed
2210	Lu	Lutetium
2211	LUCA	Last Universal Common Ancestor
2212	LUG	Linux User Group
2213	LULU	Locally Unwanted Land Use (urbanism)
2214	LUX	Luxembourg (ISO 3166 trigram)
2215	LVA	Latvia (ISO 3166 trigram)
2216	LVEF	Left Ventricular Ejection Fraction
2217	Lw	Lawrencium (obsolete 1963)
2218	LWR	Laser warning receiver
2219	LWRC	Land Warfare Resources Corporation
2220	LWS	Land Warrior System
2221	LX	Electrics (theatrical term)
2222	LYAO	Laugh Your Ass Off
2223	LYLAS	Love You Like A Sister
2224	Ma	Megaannum
2225	mA	Milliampere
2226	MAA	Mathematical Association of America
2227	MAAC	Metro Atlantic Athletic Conference
2228	MACE	Multi-Agent Computing Environment
2229	MACHO	MAssive Compact Halo Object
2230	MAF	Maintenance Action Form
2231	MAGIC	Major Atmospheric Gamma-ray Imaging Cherenkov (telescope)
2232	MAGNETAR	Metaprogrammable AGent NETwork ARchitecture
2233	MAGTF	Marine Air-Ground Task Force
2234	MALD	Miniature Air-Launched Decoy
2235	MANPADS	MAN-Portable Air Defence System
2236	MANPRINT	MANpower and PeRsonnel INTegration
2237	MAO	Molėtų astronomijos observatorija (Moletai Astronomical Observatory),MonoAmine Oxidase
2238	MAOI	Monoamine oxidase inhibitor
2239	MAPS	Monitoring Avian Productivity and Survivorship
2240	MAR	Morocco (ISO 3166 trigram)
2241	MarBEF	Marine Biodiversity and Ecosystem Functioning
2242	MARCENT	United States Marine Forces Central Command
2243	MARFORCC	Marine Force Component Commander
2244	MASAS	Monte Agliale Supernovae and Asteroid Survey
2245	Maser	Microwave Amplification by Stimulated Emission of Radiation
2246	MASH	Mobile Army Surgical Hospital
2247	MASINT	Measurement And Signature Intelligence
2248	MAVS	Mobile Artillery Vehicle System
2249	MBBL	(U.S. Armor Center) Mounted Battlespace Battle Laboratory
2250	MBCC	Migratory Bird Conservation Commission (U.S.)
2251	MBCS	Multi-Byte Character Set
2252	MBI	Moody Bible Institute
2253	MBIDST	Member of the British Institute of Dental and Surgical Technologists
2254	MBM	Meat and Bone Meal
2255	MBT	Main Battle Tank
2256	MBTI	Myers-Briggs Type Indicator
2257	mC	Millicoulomb
2258	MCDL	Model Composition Definition Language
2259	MCFT	Modified Compression Field Theory
2260	MCG	Melbourne Cricket Ground
2261	MCIS	Mellon Collie and the Infinite Sadness
2262	MCM	Mine Counter-Measures
2263	MCMV	Mine Counter-Measure Vessel
2264	MCR	My Chemical Romance
2265	MCSF	Marine Corps Security Forces
2266	MCT	Movement Control Team
2267	MCTIS	Mounted Co-operative Target Identification System
2268	Md	Mendelevium
2269	MDNA	Madonna's 12th studio album title (2012)
2270	MDO	Membership Driven Organisation
2271	MDP	Markov Decision Process
2272	MDT	Mountain Daylight Time (UTC-6 hours)
2273	MDV	Maldives (ISO 3166 trigram)
2274	Me	Messerschmitt
2275	MEAC	Mid-Eastern Athletic Conference (ME-ac)
2276	MECO	Main engine cutoff (NASA code for point in Space Shuttle assent when three main engines are shut down prior to External Tank (ET) separation)
2277	MEDEVAC	Medical evacuation
2278	MEDS	Mission Essential Data Set
2279	MEG	MagnetoEncephaloGraphy
2280	MELT	Metallic Line/Loop Test (ing)
2281	MEMS	Microelectromechanical System
2282	MER	Mars Exploration Rover
2283	MERL	Mitsubishi Electric Research Laboratories
2284	MES	Manufacturing Execution Systems
2285	METAR	[Meteorological] Aviation Routine weather report
2286	METOC	Meteorological and Oceanographic
2287	MeV	Megaelectronvolt
2288	MEX	Mexico (ISO 3166 trigram)
2289	MEZ	Missile Engagement Zone
2290	mF	Millifarad
2291	MGPAM	My Gym Partner's a Monkey
2292	MGS	Mobile Gun System
2293	mH	Millihenry
2294	MHC	Major Histocompatibility Complex
2295	MHHW	Mean Higher High Water (nautical charts)
2296	MHL	Marshall Islands (ISO 3166 trigram)
2297	MHLW	Mean Higher Low Water (nautical charts)
2298	MHRA	(UK) Medicines and Healthcare products Regulatory Agency
2299	MHW	Mean High Water (nautical charts)
2300	MHWN	Mean High Water Neaps (nautical charts)
2301	MHWS	Mean High Water Springs (nautical charts)
2302	MHz	Megahertz
2303	Mi	Mebi
2304	MIA	Missing In Action
2305	MICLIC	Mine Clearing Line Charge
2306	MICOM	Missile Command
2307	MID	Midway Islands (ISO 3166 trigram; obsolete 1986)
2308	MIDAS	Man-machine Integration Design and Analysis System
2309	MIDI	Musical Instrument Digital Interface
2310	MIDS	Multi-Function Information Distribution System
2311	MIFG	Shallow Fog (METAR Code)
2312	MIKE	Monitoring of Illegal Killing of Elephants
2313	MIL	Man-In-the-Loop
2314	MILC	Mirrorless interchangeable-lens camera
2315	MILF	Mother I'd Like to Fuck
2316	MIMOSA	MIcroMeasurements Of Satellite Acceleration
2317	MIMPT	Member of the Institute of Maxillofacial Prosthetists and Technologists
2318	MIRA	MILAN Infra-Red Acquisition (thermal sight)
2319	MIRV	Multiple Independent Reentry Vehicle
2320	MISREP	Mission Report
2321	MISSI	Multilevel Information System Security Initiative
2322	MITL	Man-In-The-Loop
2323	MITS	see entry
2324	mJ	Millijoule
2325	MJD	Modified Julian Day
2326	mK	Millikelvin
2327	MKG	Michael Kidd-Gilchrist (American basketball player)
2328	MKSA	Metre-Kilogram-Second-Ampere (system of units)
2329	mL	Millilitre
2330	MLB	Major League Baseball
2331	MLC	Member of the Legislative Council (in India)
2332	MLE	Maximum likelihood estimation
2333	MLHW	Mean Lower High Water (nautical charts)
2334	MLI	Mali (ISO 3166 trigram)
2335	MLL	Major League Lacrosse
2336	MLLW	Mean Lower Low Water (nautical charts)
2337	MLP	My Little Pony
2338	MLRS	Multiple-Launch Rocket System
2339	MLT	Malta (ISO 3166 trigram)
2340	MLW	Mean Low Water (nautical charts)
2341	MLWN	Mean Low Water Neaps (nautical charts)
2342	MLWS	Mean Low Water Springs (nautical charts)
2343	Mm	Megametre
2344	mm	Millimetre
2345	MMEV	Multi-Mission Effects Vehicle
2346	MMI	Magical MonkeyZ Inc.
2347	MMI	Man-Machine Interface
2348	MMI	McLean Meditation Institute
2349	MMIC	McLean Meditation Institute Certified
2350	MMO	Massively Multiplayer Online (computer game)
2351	MMOR	Master of Management in Operations Research
2352	MMORPG	Massively multiplayer online role-playing game
2353	MMPR	Mighty Morphin Power Rangers
2354	MMS	Multimission Modular Spacecraft
2355	Mn	Manganese
2356	mN	Millinewton
2357	MNB	Multinational Brigade
2358	MNE	Montenegro (ISO 3166 trigram)
2359	MNMF	Multi-National Maritime Force
2360	MNP	Northern Mariana Islands (ISO 3166 trigram)
2361	MNS	Mission Needs Statement
2362	Mo	Molybdenum
2363	MOA	Museum of Art (Brigham Young University)
2364	MOCAS	Mechanization Of Contract Administration Services
2365	MoD	Ministry of Defence (United Kingdom) and various other countries
2366	modem	Modulator-Demodulator
2367	Moe	Marvel of entertainment
2368	MOE	Measure Of Effectiveness
2369	MOF	Ministry of Finance (Japan)
2370	MOFA	Ministry of Foreign Affairs (Japan)
2371	MOID	Minimum Orbital Intersection Distance
2372	MOJWA	Movement for Oneness and Jihad in West Africa
2373	MOLO	Mobile Other Licensed Operator (UK)
2374	MOM	Master's Degree in Oriental medicine
2375	MOM	Message Oriented Middleware
2376	MoM	Multiple of the median
2377	MoMA	Museum of Modern Art (NYC)
2378	MOND	Modified Newtonian Dynamics
2379	MOO	Measure Of Outcome
2380	MOPP	Mission-Oriented Protective Posture
2381	MORP	Meteorite Observation and Recovery Project
2382	MOSFET	Metal-Oxide-Semiconductor Field-Effect Transistor
2383	MOT	Ministry of Transport (UK)
2384	MOTA	Member of the Orthodontic Technicians Association
2385	MOTESS	Moving Object and Transient Event Search System
2386	MOU	Memorandum Of Understanding
2387	MOW	Maintenance of way (also MW)
2388	MOZ	Mozambique (ISO 3166 trigram)
2389	MPa	Megapascal
2390	mPa	Millipascal
2391	MPAA	Motion Picture Association of America
2392	MPEC	Minor Planet Electronic Circular
2393	MPEG	Motion Pictures (Coding) Experts Group
2394	MPEV	Multi-Purpose Engineering Vehicle
2395	MPF	Maritime Prepositioning Force
2396	MPFC	Medial PreFrontal Cortex
2397	MPG	Miles Per Gallon
2398	MPMC	Medial PreMotor Cortex
2399	MPSI	Member of the Pharmaceutical Society of Ireland
2400	MPSoC	MultiProcessor System-on-Chip
2401	MPSRON	Maritime Propositioning Ship Squadron
2402	MR	Mauritania (FIPS 10-4 country code; ISO 3166 digram)
2403	MRAV	Multi-Role Armoured Vehicle
2404	MRBM	Medium Range Ballistic Missile
2405	MRC	Maintenance Requirements Card
2406	MRD	Motorized Rifle Division
2407	MRGW	Medium-Range Guided Weapon
2408	MRI	Magnetic Resonance Imaging
2409	MRL	Multiple Rocket Launcher
2410	MRPharmS	Member of the Royal Pharmaceutical Society (Great Britain)
2411	MRS	Magnetic Resonance Spectroscopy
2412	MRSA	Methicillin-resistant Staphylococcus aureus
2413	MRTFB	U.S. Major Range and Test Facility Base
2414	Ms	Megasecond
2415	mS	Millisiemens
2416	MSD	Minimum Safe Distance
2417	MSDB	Multi Source Data Base
2418	MSE	Multiple Subscriber Element
2419	MSG	Message
2420	MSLP	Mean Sea Level Pressure
2421	MSNBC	Microsoft National Broadcasting Company Cable news channel (see also msnbc.com)
2422	MSO	Multiple System Operator
2423	MSPB	Merit Systems Protection Board
2424	MSSA	Methicillin-susceptible Staphylococcus aureus
2425	Mt	Meitnerium
2426	mT	Millitesla
2427	MTBF	Mean time between failures
2428	MtF	Male-to-female transsexual
2429	MTG	Magic: The Gathering
2430	MTQ	Martinique (ISO 3166 trigram)
2431	MTT	Methylthiazol tetrazolium (assay)
2432	MTWS	MAGTF Tactical Warfare System
2433	MUS	Mauritius (ISO 3166 trigram)
2434	mV	Millivolt
2435	MVC	Missouri Valley Conference
2436	MVFC	Missouri Valley Football Conference
2437	MVNO	Mobile virtual network operator
2438	mW	Milliwatt
2439	MWESH	Machismo Wizards Extended SHelter (operating system)
2440	MWI	Malawi (ISO 3166 trigram)
2441	MWOA	Mount Wilson Observatory Association
2442	MWTB	Mounted Warfare Test Bed
2443	MY	Malaysia (FIPS 10-4 country code; ISO 3166 digram)
2444	MYOB	Mind Your Own Business
2445	MYS	Malaysia (ISO 3166 trigram)
2446	MYT	Mayotte (ISO 3166 trigram)
2447	n	Nano
2448	N3F	National Fantasy Fan Federation
2449	nA	Nanoampere
2450	Na	Sodium (Latin Natrium)
2451	NAA	N-Acetylaspartate
2452	NAAD	North American Air Defense
2453	NAAQS	National Ambient Air Quality Standards
2454	NAAWS	NATO Anti-Air Warfare System
2455	NAC	National Agency Check,U.S. Naval Avionics Center,U.S. Navy Advanced Concepts,North Atlantic Council,Northern Area Command
2456	NACC	North Atlantic Cooperation Council
2457	NACISA	NATO Communications and Information Systems Agency
2458	NACMA	NATO Air Command and Control System Management Agency
2459	NACRA	North America Caribbean Rugby Association (more specifically rugby union)
2460	NAEC	U.S. Naval Air Engineering Center
2461	NAFERA	Native American Free Exercise of Religion Act
2462	NAFLD	NonAlcoholic Fatty Liver Disease
2463	NAFO	Northwest Atlantic Fisheries Organization
2464	NAFTA	North American Free Trade Agreement
2465	NAGPRA	Native American Graves Protection and Repatriation Act
2466	NAICS	North American Industry Classification System
2467	NAIL	Neurotics Anonymous
2468	NAILS	National Airspace Integrated Logistics System
2469	NAIRU	Non Accelerating Inflation Rate of Unemployment
2470	NAK	Negative Acknowledge
2471	NAM	Namibia (ISO 3166 trigram)
2472	NAMBLA	North American Man-Boy Love Association
2473	NAMRL	Naval Aerospace Medical Research Laboratory
2474	NaN	Not A Number (computing)
2475	NAO	UK National Audit Office
2476	NAPS	Navy Acquisition Procedures Supplement
2477	NARA	(U.S.) National Archives and Records Administration
2478	NARAL	National Abortion Rights Action League
2479	NARDAC	Naval Regional Data Automation Center
2480	NARDIC	U.S. Navy Acquisition Research and Development Information Center
2481	NARPV	National Association for Remotely Piloted Vehicles
2482	NASCAR	National Association for Stock Car Auto Racing
2483	NASDAQ	National Association of Securities Dealers Automated Quotations
2484	NASED	National Association of State Election Directors [1][2]
2485	NASH	Non-Alcoholic Steatohepatitis
2486	NASP	National Aerospace Plane
2487	NASS	National Association of Secretaries of State [3]
2488	NatGeo	National Geographic
2489	NaUKMA	National University of Kyiv-Mohyla Academy
2490	NAV	Navigation[al]
2491	NAVCAMS	Naval Communications Area Master Station
2492	NAVCC	National Audio-Visual Conservation Center
2493	NAVCENT	Naval Forces U.S. Central Command
2494	NAVDAC	Naval Data Automation Command
2495	NAVEUR	Naval Forces U.S. European Command
2496	NAVFOR	Naval Force
2497	NAVMACS	Naval Modular Automatic Communication Subsystem
2498	NAVNET	Navy Network
2499	NAVS	Non-Cooperative Airborne Vector Scoring
2500	NAVSAT	Navigation Satellite

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