| AAA |
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initialism
- w:American Automobile Association, American Automobile Association
- anti-aircraft artillery
- w:Amateur Athletic Association, Amateur Athletic Association
- Abdominal Aortic Aneurysm
- Access All Areas, Sony music project
- Access Approval Authority
- Accumulated Adjustments Account, in US Federal Income Tax
- Acquisition Approval Authority
- Action Awareness Alert
- Adaptive Array Antenna
- Administration, Authorization, and Authentication, in software security
- Advanced Acoustic Array
- AEGIS Acquisition Agent
- Aerospace Engineering, Applied Mechanics, and Aviation
- Age Anaesthesia Association
- Air Avenue of Approach
- Airborne Array Aperture
- Airborne Assault Area
- Aircraft Alert Area
- Airport Airspace Analysis
- Alaska Activities Adventures Plus Tours
- Allocations, Assessments, and Analysis
- Alternate Assembly Area
- Angle Angle Angle, a geometric proof
- Area Agency on Aging
- Arrival and Assembly Area
- Army Audit Agency
- Aromatic Amino Acid
- Assign Alternate Area
- Association of Avatar Artists
- Astronaut-Actuated Abort
- Atheist and Agnostic Association
- Attitude, Awareness and Accountability, a ski safety program
- Authentication, Authorization and Accounting
- Authorization Accounting Activity
- Authorized Accounting Activity
- Automated Airlift Analysis
- Automobile Association of America (USA)
- Autoridad de Acueductos y Alcantarillados (Aqueduct and Sewer Authority, Puerto Rico)
- Awaiting Aircraft Availability
- Allied Artists' Association
- Amateur Athletics Association
- American Abstract Artists
- American Academy of Actuaries
- American Academy of Addictionology
- American Academy of Advertising
- American Academy of Audiology
- American Accounting Association
- American Allergy Association
- American Ambulance Association
- American Armwrestling Association
- American Association of Anatomists
- American Audit Associates
- ANSI Artists of America
- Anticipative Adaptive Array, in frequency-hopping communications
- Antique Airplane Association
- Antique Automobile Association
- Appraisers Association of America
- Arkansas Ambulance Association
- Australian Association of Accountants
- Australian Automobile Association
(wikipedia, dab=AAA)
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|
| AAAA |
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noun
- a specific size and configuration of electric battery
- (slang) a baseball player who is too good for Minor League Baseball, but not good enough for Major League Baseball
- a type of DNS record used to indicate the IPv6 internet address of a DNS name
initialism
- American Association of Advertising Agencies
- American Association for Affirmative Action
- Antique Aeroplane Association of Australia
- Australian Automotive Aftermarket Association
- Army Aviation Association of America
- "Authentication, Authorization, Accounting, and Auditing", the four main services provided by an Wikipedia:Internet Authentication Service, Internet Authentication Service
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| AAP |
|
initialism
- Affirmative Action Program
- Allied Administrative Publication
- American Academy of Pediatrics
- Australian Associated Press
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| ABA |
|
initialism - American Bar Association
|
|
| ACLU |
|
initialism
- American Civil Liberties Union
|
| ACT |
|
initialism
- Australian Capital Territory (federal territory)
- American College Test
|
| ADA |
|
initialism
- w:American Dental Association, American Dental Association
- w:Americans for Democratic Action, Americans for Democratic Action
- w:Americans with Disabilities Act, Americans with Disabilities Act
- w:Assistant District Attorney, Assistant District Attorney
- The enzyme adenosine deaminase, specifically that affects RNA. See ADAR.
- w:American Diabetes Association, American Diabetes Association
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| ADC |
|
initialism
- aide-de-camp
- 1888: Then "the is Waiting was commanded by Their Excellencies, Lord and Lady Lytton, to invite Mr and Mrs Cusack-Bremmil to Peterhoff on July 26 at 9.30 p.p." " "Dancing" in the bottom-left-hand corner. " Rudyard Kipling, "Three and"an Extra", Plain Tales form the Hills (Folio Society 2005, p. 13)
- Analog-to-Digital Converter
- Aid to Dependent Children
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| ADL |
|
initialism - Activities of Daily Living
|
| AFL |
|
initialism
- w:Arena Football League, Arena Football League
- American Federation of Labor
- (Australia) Australian Football League
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| AGC |
|
initialism - (radio technics) Automatic Gain Control
- Attorney Grievance Commission
|
| AHA |
|
initialism
- American Heart Association
- (organic chemistry) alpha-hydroxy acid
|
| AID |
|
initialism - Agency for International Development
|
| AIM |
|
initialism
- AOL Instant Messenger
|
| a.m. |
|
abbreviation
- before noon (used after a time to indicate it is between midnight and noon, i.e., in the morning)
- ad modum (less commonly used)
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| AMC |
|
initialism - American Motors Corporation
|
| AMS |
|
initialism - mass spectrometry, Accelerator Mass Spectrometry
|
| ANC |
|
initialism - w:African National Congress, African National Congress
|
| ANG |
|
initialism
- Air National Guard
|
| AOA |
|
initialism - Administration on Aging
(wikipedia, Administration on Aging)
- (aeronautical) angle of attack
- add-on armor
|
| APA |
|
initialism - Assistant Prosecuting Attorney
- American Psychological Association
- American Psychiatric Association
|
| API |
|
initialism - Application Programming Interface.
- Advanced Programming Interface
- Associated Press International
- Active Pharmaceutical Ingredient
- American Petroleum Institute
|
| ARA |
|
initialism
- Aracruz Cellulose S.A.
- Applied Research Associates
- Awards and Recognition Association
- Australian Retailers Association
- Automotive Recyclers Association
- Australasian Railway Association
|
| ASA |
|
initialism - Acoustical Society of America
- American Standards Association, which has changed its name to American National Standards Institute (ANSI).
- American Society for Anesthesiology.
- Amateur Swimming Association.
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| ASL |
|
initialism - American Sign Language
- Age, Sex, Location (same as asl)
- Above Sea Level
|
| ASME |
|
initialism - w:American Society of Mechanical Engineers, American Society of Mechanical Engineers
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| ASTM |
|
initialism
- American Society for Testing and Materials
|
| ASU |
|
initialism
- Arizona State University
|
| Aus |
|
abbreviation - Australia
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