A

A
ampere    A
Arrival/Departure Airfield Control Group    A/DACG
Anti-submarine (warfare)    A/S, ASW
anti-aircraft    AA
Antiaircraft Artillery    AAA
Advanced Air-to-Air Missile    AAAM
advanced airborne anti-armor weapon    AAAW
Advanced Airborne National Command Post     AABNCP
Army Air Corps    AAC
Army Area Communications System     AACOMS
Area Air Defense Commander     AADC
advanced attack helicopter    AAH
Air-to-Air Interrogator Set    AAI
Air-to-air missile    AAM
After Action Report    AAR
Air-to-air refuelling.    AAR
Army Armament Research and Development Command    AARADCOM
Air Assault Division    AASLT Div
All arms trencher    AAT
Automatic approach to hover.    AATH
Automatic Antenna Tuning Unit    AATU
amphibious armored vehicle    AAV
Amphibious Assault Vehicle    AAV
Assault Amphibian Vehicle    AAV
Assault Amphibian Vehicle Personnel    AAVP
Assault Amphibian Vehicle Recovery    AAVR
Anti-Air Warfare    AAW
Advanced Anti-tank Weapon System    AAWS
Air Base    AB
assault breaker    AB
airborne (division)    AB(D)
Atomic, Biological and Chemical    ABC
Airborne Battlefield Command And Control Center    ABCCC
Aircraft Battle Damage Repair    ABDR
Arab Bank for Economic Development in Africa    ABEDA
Advanced Bomb Family    ABF
Aerial Bulk Fuel Delivery System    ABFDS
armored box launcher or airborne laser    ABL
Automotive Bridge Launching Equipment    ABLE
anti-ballistic missile    ABM
Airborne    ABN
Airborne Corps    Abn Corps
the total could be higher    about
advanced ballistic re-entry system    ABRES
advanced ballistic re-entry vehicle    ABRV
Anti-lock brake system    ABS
Amphibious bridging system (tracked)    ABS(T)
Active Component    AC
aircraft    ac
alternating current, or air combat    AC
Airspace Control Authority or Airlift Clearance Authorities     ACA
Automatic Chemical Agent Detector Alarm    ACADA
Air Combat Assessment Summary    ACAS
Airfield Chemical Alarm System    ACAS
Air Combat Command.    ACC
Air Component Commander or Airspace Coordination Center or Arab Cooperation Council    ACC
Air Cavalry Combat Brigade    ACCB
Airborne Command and Control Squadron    ACCS
Army Command and Control System (USA) or Air Command and Control System (NATO)    ACCS
Agency for Cultural and Technical Cooperation    ACCT
Automatic Call Distribution    ACD
Arms Control and Disarmament Agency    ACDA
Advanced Combat Direction System    ACDS
Aircrew Chemical Defense Ventilator System    ACDVS
Airborne Command Element (USAF) or Aviation Combat Element (USMC) or Air Combat Element (NATO) or Armored Combat Earthmover (US Army)    ACE
Allied Command Europe (NATO)    ACE
Allied Command Europe Automated Command Control and Information System (NATO)    ACE-ACCIS
Tropospheric scatter communications network (NATO)    Ace High
Aimed Controlled Effect Anti-tank Mine    ACEATM
Activated Carbon Fabric    ACF
acknowledgement    ACK
Airborne Communications Location Identification and Collection System    ACLICS
Automated Command to Line Of Sight    ACLOS
Automatic carrier landing system.    ACLS
advanced cruise missile    ACM
Air Combat Maneuvers    ACM
air combat maneuvering instrumentation    ACMI
automatic communication management system    ACMS
Aircraft classification number     ACN
Airspace Coordination Order or Airspace Control Order     ACO
African, Caribbean, and Pacific Countries    ACP
Automatic Colt Pistol    ACP
African, Caribbean, and Pacific Group of States    ACP Group
Advanced Combat Rifle    ACR
Armored Cavalry Regiment    ACR
Armored Command and Reconnaissance Vehicle    ACRV
airborne crew trainer    ACT
Air Conditioning Unit    ACU
air cushion vehicle/ vessel/ armored combat vehicle    ACV
armored cannon vehicle    ACV
agile continuous wave acquisition radar    ACWAR
Air Defense    AD
Air Division    AD
Air Defense Artillery     ADA
Area denial artillery munition    ADAM
air defense anti-missile system    ADAMS
Automatic Data Processing (Standard) 3 (NATO)    ADat-P3
air defense anti-tank system    ADATS
Action Data Automation Weapons System    ADAWS
Asynchronous Digital Combiner    ADC
advanced capabilities    ADCAP
Air Defense Command Information System    ADCIS
Army Data Distribution System     ADDS
Alert Detection Et Localization des Emetteurs    ADELE
Automatic Direction-Finding    ADF
Accessory-drive generator.    ADG
air defense ground environment    ADGE
Air Defense Initiative, or Australian Defense Industries    ADI
Ada Improvement Program (UK)    ADIMP
air defense interoperability validation system    ADIVS
adjusted    adj
advanced kinetic energy missile    ADKEM
Automatic DataLink Plotting System    ADLIPS
atomic demolition munitions    ADM
Air Defense Operations Center     ADOC
automatic data processing    ADP
Air Defense Planning Group    ADPG
Air Defense Region    ADR
automatic defense system    ADS
Automatic Data System for the Army in the Field    ADSAF
Advanced Ship Communications    ADSCOM
Airborne Data Terminal or Automatic Data Transmission    ADT
Air Defense Exercise    ADX
assault echelon    AE
auxiliary, ammunition carrier (in Military Balance)    AE
Associated Equipment Company    AEC
Arms Export Control Board    AECB
Aeromedical Evacuation Control Center     AECC
AEW/ground environment integration system    AEGIS
Ship based long-range air defense System.    Aegis
Aeromedical Evacuation Liaison Team    AELT
Aeromedical Evacuation Squadron    AES
Armored engineer vehicle    AEV
airborne early warning    AEW
airborne early warning and control    AEW&C
audio frequency    AF
stores ship with RAS    AF
artillery-fired atomic projectile    AFAP
Armored forward area rearm vehicle    AFARV
advanced field artillery tactical data system    AFATDS
Air Force Base    AFB
Air Force Base/Station    AFB/S
automatic frequency control    AFC
Air Force Combat Ammunition Center     AFCOMAC
Automatic flight control system.    AFCS
African Development Bank    AfDB
Arctic fuels dispensing equipment    AFDE
Air Force Digital Graphics System    AFDIGS
Arab Fund for Economic and Social Development    AFESD
Air Force Electronic Warfare Center     AFEWC
Air Force Global Weather Center    AFGWC
Air Force Historical Research Agency    AFHRA
Air Force Logistics Command    AFLC
Air Force Logistics Information File    AFLIF
Air Force Logistics Management Center    AFLMC
Armed Forces Medical Intelligence Center    AFMIC
Air Force Mission Support System    AFMSS
Air Force Reserve    AFR
Aramid fiber-reinforced plastics.    AFRP
automatic frequency selection    AFS
Air Force Systems Acquisition Review Council    AFSARC
Air Force Satellite Communications    AFSATCOM
Air Force Systems Command or Air Force Specialty Code     AFSC
Audio Frequency Shift Keying    AFSK
Air Force Special Operations Command    AFSOC
Allied Forces, South (NATO)    AFSOUTH
Air Filtration Unit    AFU
Armored fighting vehicle    AFV
Air Force Wartime Manpower and Personnel Readiness Team    AFWMPRT
Andean Group; see Andean Community of Nations    AG
misc. auxiliary    AG
automatic gain control    AGC
Advanced Graphics Engine, or Air/Ground Environment    AGE
Aerospace Ground Equipment    AGE
Air-to-Ground Engagement/Air Defense    AGES/AD
hydrographic survey vessel    AGHS
intelligence collection vessel    AGI
Above Ground Level    AGL
Automatic Grenade Launcher    AGL
air-to-ground missile    AGM
air-to-ground missile designator    AGM
oceanographic research vessel    AGOR
ocean surveillance vessel    AGOS
Advisory Group on Reliability in Electronic Equipment.    AGREE
Ampere hour    Ah
hospital ship (in Military Balance)    AH
Ad Hoc Collective Protection    AHCP
Ammunition handling equipment    AHE
Anti-helicopter mine    AHM
Attitude and heading reference system    AHRS
Air Interdiction    AI
artificial intelligence, or air intercept (for instance AI radar)    AI
advanced intercept air-to-air missile    AIAAM
Advanced Integrated Display System    AIDS
Automated Installation File    AIF
Armored Infantry Fighting Vehicle    AIFV
Address Indicator Group    AIG
air intercept missile designator    AIM
action information organization    AIO
Air independent propulsion    AIP
Air Inflatable Retarder    AIR
Advanced instrumentation subsystem.    AIS
Advanced Interdiction Weapons System    AIWS
Anti-Jamming    AJ
cargo ship (in Military Balance)    AK
fast sealift ship (in Military Balance)    AKR
Arab League    AL
Automatic Liquid Agent Detector    ALAD
Air-Launched Anti-Radiation Missile    ALARM
Automatic load-dependent brake    ALB
Air Logistics Center    ALC
Automatic Level Control    ALC
airborne launch control center    ALCC
Airlift Control Center    ALCC
Airlift Control Element    ALCE
Air-Launched Cruise Missile    ALCM
airborne launch control system    ALCS
automatic link establishment    ALE
armored infantry fighting vehicle    AlFV
algorithmic language    ALGOL
Airlift Mission Schedule    ALMSNSCD
Air Liaison Officer    ALO
air line of communications    ALOC
Airborne Light Optical fiber Technology (US)    ALOFT
automatic link quality analysis    ALQA
advanced lightweight torpedo    ALWT
amplitude modulation    AM
Airframe-mounted accessory drive.    AMAD
Air-Mobile Brigade    AMB
Air Mobility Command.    AMC
Army Materiel Command    AMC
Armaments, Munitions and Chemical Command    AMCCOM
airborne mine countermeasures    AMCM
AM Equivalent    AME
Artillery Meteorological System    AMETS
Arab Monetary Fund    AMF
Alarm Monitor Group    AMG
Airborne minefield detection system    AMIDS
Anti-magnetic mine actuation device    AMMAD
amphibious/amphibian    amph
Automated Message Processing System (UK)    AMPS
Advanced Medium-Range Air-to-Air Missile    AMRAAM
automatic marking system    AMS
Above Mean Sea Level    AMSL
adaptive moving target detection    AMTD
Aircraft Maintenance Unit     AMU
Arab Maghreb Union    AMU
Armored Maintenance Vehicle    AMV
Automated Nuclear, Biological and Chemical Information System    ANBACIS
Andean Common Market; or Andean Community of Nations    Ancom
Advanced Narrowband Digital Voice Terminal    ANDVT
Air National Guard    ANG
Air and Naval Gunfire Liaison Company    ANGLCO
supersonic anti-ship    ANS
aviator's night vision imaging system    ANVIS
Australia-New Zealand-United States Security Treaty    ANZUS
Area of Operation     AO
tanker(s) with/without RAS capability (in Military Balance)    AO/T
airborne optical adjunct    AOA
Air Order of Battle     AOB
advanced optical countermeasures    AOCM
auxiliary, fuel and ammunition, RAS capability (in Military Balance)    AOE
Air observation post.    AOP
Area of Responsibility    AOR
automatic ordnance scoring system    AOSS
artillery observation vehicle    AOV
armed for anti-personnel attack (in Military Balance)    AP
Armor-Piercing. Signifies a solid projectile for kinetic energy attack of armor.    AP
Analysis of Pacific Area Communications for Hardening to EMP    APACHE
advanced phased array-radar    APAR
analyzing printer base    APB
(1) Armored Personnel Carrier. (2) Armor-Piercing, Capped. An AP projectile with a penetrating cap over its point.    APC
Armor-Piercing, Capped, Ballistic Capped. An APC projectile with a light ballistically shaped nose cap to improve flight characteristics.    APCBC
Aerial Port Control Center     APCC
Alarm and Power remote-Control Unit    APCU
Armor-Piercing, Discarding Sabot. A kinetic energy attack projectile with a heavy core, supported in the gun by a light metal or plastic sabot which is discarded at the muzzle.    APDS
armor-piercing explosive    APE
Asia Pacific Economic Cooperation    APEC
Air-portable fuel container    APFC
Autopilot flight director.    APFD
Armor-Piercing, Fin-Stabilized, Discarding Sabot. Kinetic energy projectile using a heavy, dart-like subprojectile supported in the gun bore by a light sabot. Used generally with smoothbore anti-tank weapons but also found with rifled weapons, in which case the driving band merely seals and is free to rotate, so as to impart minimum spin to the subprojectile.    APFSDS
anti-personnel land-mine    APL
Aerial Port of Debarkation    APOD
Auxiliary power reserve.    APR
Afloat Propositioning Ship    APS
Ada programming support environment    APSE
Auxiliary power unit    APU
Allied Quality Assurance Publication    AQAP
advanced quick look    AQL
Armor    AR
repair ship (in Military Balance)    AR
availability, reliability and maintainability    AR&M
armored recovery (and repair) vehicle    AR(R)V
Arab Satellite Communications Organization    Arabsat
Angle Rate Bombing Set    ARBS
Air Reserve Components    ARC
Amphibious river crossing equipment    ARCE
U.S. Army Forces, Central Command    ARCENT
Army Component, Central Command     ARCENT
Admiralty Research Establishment    ARE
Air Refueling Squadron     AREFS
amphibious ready group    ARG
Automatic Rocket Guardian with Electronic Sensor    ARGES
Aeronautical Radio Inc (US company)    ARINC
anti-radar missile    ARM
Antiradiation Missiles    ARM
armored    armd
Armored Resupply Maintenance System    ARMS
Army National Guard.    ARNG
U.S. Army National Guard    ARNG
anti-radiation projectile    ARP
Advanced Research Projects Agency     ARPA
Packet switched data communications network    ARPANET
Automatic Repeat Request    ARQ
Armored Repair and Recovery Vehicle    ARRV
Aerial Radiac System    ARS
Air Rescue Service    ARS
salvage ship    ARS
air route surveillance radar    ARSR
Army Tactical Data System    ARTADS
artillery    Arty
Armored recovery vehicle    ARV
Air Rescue Wing    ARW
air-to-surface    AS
submarine depot ship    AS
Assistant to the Army for Research, Development and Acquisition    ASARDA
Advanced Synthetic Aperture Radar system    ASARS
All Source Analysis System    ASAS
anti-satellite weapon    ASAT
American Standard Code for Information Interchange    ASCII
Advanced Sonobuoy Communications Link    ASCL
anti-ship cruise missile    ASCM
Automatic Switched Communications Network    ASCON
Assistant Secretary of Defense (Public Affairs)    ASD(PA)
Assistant Secretary of Defense (Special Operations and Low Intensity Conflict)    ASD(SO-LIC)
Asian Development Bank    AsDB
alternative space defense center    ASDC
(1) Automatic stabilization equipment (2) Aircraft survivability equipment.    ASE
Association of Southeast Asian Nations    ASEAN
Army standard family    ASF
Airspeed indicator.    ASI
application specific integrated circuit    ASIC
Airspeed indicator reading.    ASIR
assault    AsIt
Air-to-Surface Missile    ASM
Air Staff Management Aide (UK and Iraq)    ASMA
airfield surface movement indicator    ASMI
air-to-surface medium range    ASMP
Air Support Operations Center    ASOC
advanced self-protection integrated suite    ASPIS
airborne self-projection jammer    ASPJ
airfield surveillance radar    ASR
submarine rescue craft    ASR
advanced short-range air-to-air missile    ASRAAM
anti-submarine rocket    ASROC
Arc Standard Raster Product    ASRP
Air Staff Target     AST
Airborne Standoff Minefield Detection System    ASTAMIDS
airborne search target attack radar    ASTAR
Assistant to the Secretary of Defense for Atomic Energy    ASTD(AE)
airborne standoff radar    ASTOR
Advanced STOVL.    ASTOVL
anti-surface unit warfare    ASUW
Anti-to-Surface Unit Warfare Commander    ASUWC
Anti-surface vessel.    ASV
anti-submarine warfare    ASW
anti-submarine warfare/standoff weapon    ASW/SOW
Anti-tank    AT
advanced test accelerator    ATA
All-terrain all climate All-terrain amphibious carrier    ATAC
Army Tactical Missile System    ATACMS
air tactical control operator    ATACO
Army Tactical Communications System (US)    ATACS
Allied Tactical Air Force (NATO)    ATAF
airborne target acquisition and fire control system    ATAFCS
advanced tactical air reconnaissance system    ATARS
advanced technology bomber    ATB
anti-tactical ballistic missile    ATBM
air traffic control    ATC
Air Training Command     ATC
Army Telecommunications Automation Program    ATCAP
air traffic control center    ATCC
Army Tactical Command and Control System    ATCCS
air traffic control officer    ATCO
air traffic control radar unit    ATCRU
Airborne Tactical Data System    ATDS
automatic test equipment    ATE
advanced tactical fighter    ATF
automatic test guide    ATG
anti-tank guided missile    ATGM
Anti-Tank Guided Munitions    ATGM
Anti-Tank Guided Weapon. A missile guided to its target and intended for the attack of armored vehicles.    ATGW
Airborne target handover (handoff) system.    ATHS
Anti-tank influence sensor    ATIS
anti-tank    ATK
All Terrain Lifter Army System    ATLAS
anti-tactical missile    ATM
Anti-tank mine-dispensing system    ATMDS
All-terrain mobile platform    ATMP
Air Tasking Order    ATO
air transportable rack    ATR
advanced threat radar jammer    ATRJ
agile target system, or air traffic system, or aircrew training system    ATS
Advanced technology test demonstrator    ATTD
Automated Tactical Target Graphic    ATTG
Armored Treatment and Transport Vehicle    ATTV
Antenna Tuning Unit    ATU
All-terrain vehicle    ATV
Automatic Digital Network    AUTODIN
Automatic Secure Voice Communications System    AUTOSEVCOM
Automatic Voice Network    AUTOVON
Autonomous undersea vehicle    AUV
Association for Unmanned Vehicle Systems    AUVS
All-up weight (term meaning total weight of aircraft under defined conditions, or at a specific time during flight).     AUW
Auxiliary (all types)    Aux
Air vehicle    AV
Aviation Coordinated Allowance List    AVCAL
Armored vehicle for engineers    AVE
Aviation gasoline    Avgas
Aviation electronics.    avionics
Armored Vehicle-Launched Bridge    AVLB
Airborne Vapor Monitor    AVM
aviation    avn
Aviation Brigade    Avn Bde
Assault Vehicle Royal Engineers    AVRE
Amphibious warfare ship    AW
Airborne Warning and Control System    AWACS
advanced warning of active radar emissions    AWARE
Automatic Weapon Data Transmission System    AWDATS
Automated Weather Network    AWN
Airborne Warning System    AWS
About, acre, acres, area     a
(Chem.) argon, (Phys.) angstrom unit,
Absolute temperature    A
anctiaircraft, Automobile Association     AA
(Phys.) ؛Ansgstrِm or ؛Ansgstrِm unit    AO, AO.U.
Antiaircraft artillery, American
Automobile Association    AAA
American Academy of Arts and Letters     A.A.A.L.
American Association for the Advancement of Science     A.A.A.S.
against all risks     A.A.R.
American Association of University Professors     A.A.U.P.
 Bachelor of Arts    A.B.
Abbreviation    abbr.
abbreviated, abbreviation    abbrev.
Ablative    abl.
Airborne    abn.
Archbishop    abp.
abridged, abridgment    abr.
Absolute    abs
Abstract    abstr.
Account    ac
(Chem.) actinium, (Meteor.) altocumulus
(Elec.) alternating current    Ac
Before Christ, athletic club     A.C.
Academic, academy    acad
account, accusative    acc.
American Council on Education.     A.C.E.
Acknowledge, acknowledgment.    ack.
Acceptance    acpt.
American Chemical Society     A.C.S.
Active, actual    act.
active duty, air dried.    A.D.
addition.    addn.
Additional     addnl.
(Radio) automatic direction finder.    ADF
Adjective, adjourned, adjunct, adjustment     adj.
administration, administrative, admiral.    adm.
Administration    admin.
Adverb, adverbial, adverbially, advertisement     adv.
Advertisement    advt.
Aeronautics    Aeron.
Atomic Energy Commission.    A.E.C.
air force, Anglo French, audio frequency.    A.F., a.f.
air force base.    A.F.B.
automatic frequency control.    A.F.C.
American Federation of Labor.    A.F.L. or
A.F. of L.
Africa, African.    Afr.
Afternoon.    aft.
Afrikaans    Afrik.
(Chem.) silver    Ag
(Radio) Automatic Gain Control.    A.G.C.
Agency    agey.
agricultural, agriculture    agr., agric.
Agent    Agt. or agt.
ampere-hour, after hegirae    a.h.
(Elect. Eng.) ampere - hour meter.    a.h.m.
American Historical Association    A.H.A.
American Institute of Architects     A.I.A.
American Institute of Electrical Engineers     A.I.E.E.
(Chem.) aluminum    Al.
American Library Association     A.L.A.
Alcohol    alc.,
Algebra    alg.,
alkaline, alkali    alk.
alternate, altitude, Alternative    alt.
ante meridiem i.e. before midday.    a.m. or A.M.
(Chem.) americium    Am
America, American    Am.
American Frrench    Amfr.
American Medical Association    A.M.A.
Ambassador    amb.
American Indian    AmInd.
American Spanish    AmSp.
Amount    amt.
atomic mass unit    A.M.U.
(Chem.) action    An
analogous, analogy, analysis    anal.
Anglo-Indian    Anglo-Ind.
anatomical, anatomy    Anat.or Anat.1010
Anglo-French    Anglo-Fr.
Anglo-Irish    Anglo-Ir.
Anglo-Latin.    Anglo-L.
Anglo-Norse.    Anglo-N.
Anglo-Norman.    Anglo-Norm.
Ancient    anc.
annual, annals    ann.
Answer    ans.
antenna, antonym    ant.
(Maths.) antilogarithm    antilog
anthropological, anthropology    anthrop.
account of     A / o.
(Eng.) automatically operated valve     A. O. V.
April    Ap.
(Aero.) air position indicator     A. P. I.
additional premium, arithmetic progression
Associated Press, author’s proof     A. P.
Army post office    A. P. O.
apparatus, apparent, appendix, appointed    app.
approximate, approximately    approx.
appoint, appointed    appt.
April    Apr.
Apartment    apt.
water, aqueous    aq.
accomplishment quotient, achievement quotient     AQ.
arrival, arrive, arrives    ar.
(Chem.) argon    Ar
Arabic    Ar.
Arab American Oil Co.     ARAMCO
acknowledgment of receipt, all risks, annual return,
army regulations    A. R.
Arabia, Arabian, Arabic     Arab.
American Red Cross    ARC or
A.R.C.
archaic, archaism, archery architect, architecture    arch.
Archbishop    Arch.
Archeology    Archeol.
Argent    arg.
arithmetic, arithmetical    arith
Arizona     Ariz.
Arkansas    Ark.
Armenian.    Arm.
arranged, arrival, arrive(d)     arr.
article, artificial, artillery     art.
Artillery    arty.
(Chem.) arsenic.    As.
airspeed, Anglo- Saxon, antisubmarine     AS.
(Aero.) airspeed indicator     ASI.
American Society of Composers, Authors and Publishers     A. S. C. A. P
American Society of Civil Engineering     A. S. C. E.
assigned, assignment     asg.
Assignment    asgmt.
above sea level     A. S. L.
American Society of Mechanical Engineering    A. S. M. E.
associate, association
associated    asso. or
assoc.
Autonomous Soviet Socialist Republic     A. S. S. R.
American Society for Testing Materials     A. S. T. M.
Assistant    asst.
Assyrian.    Assyr.
Assembly     assy.
(Chem.) astatine.    At
astrologer, astrological, astrology    astrol.
astronomer, astronomical, astronomy    astron.
airtight, atomic     at.
(Chem.) acid treatment (Elec. Eng.) ampere turns.    A. T.
antitank.    AT.
atlantic.    Atl.
atmosphere, atmospheric    atm.
atomic number    at. no.
attached, attention, attorney     att.
attention     attn.
Attribute, attributive(ly)    attrib.
(Aero.) assisted take-off    A. T. O.
Attorney     atty.
attorney general     atty-gen.
atomic weight    at. wt.
(Chem.) gold    Au.
Angstrom Unit    A˚. U., A˚U
(Aero.) all-up weight     A. U. W.
Augmentative    aug.
August    Aug.
Army of the United States     A. U. S.
Australia, Australian     Austral.
authentic, author, authorized    auth.
auxiliary     aux.
avenue, average, avoirdupois    av.
Authorized Version (of the Bible)    A. V.
(Radio) Automatic Volume Control    A. V. C.
Avoirdupois    avdp.
(Eng.) average efficiency    Av. eff.
Avenue    ave.
average     avg.
Aviation    avn.
(Eng.) American Wire Gauge.    A. W. G.
actual weight, aircraft warning, articles of war, automatic weapon    A. W.
(Mil.) Absent without leave     A. W. O. L.
(Chem.) atomic weight unit    AWU
Axiom    ax.
azimuth, azure    az.