AO


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AcronymDefinition
AOAnnouncement of Opportunity
AOAnarchy Online (internet game)
AOAngola
AOAdaptive Optics
AOAdjustable Objective (rifle telescopic sight)
AOOrder of Australia
AOAdults Only (ESRB game rating, 18 yrs. and up; graphic sex/violence)
AOAdministrative Order
AOAccount Of
AOAdvisory Opinion
AOAosta (Val d'Aosta, Italy)
AOAnd Others
AOAnarchy-Online (PC MMORPG)
AOAmong Others
AOAgent Orange (herbicidal warfare)
AOAnalog Output
AOOther Articles (US postal service)
AOApplied Optics
AOOfficer of the Order of Australia
AOAtlantic Ocean
AOAmerican Optical
AOAdults Only
AOAbgabenordnung (German tax regulations)
AOArctic Ocean
AOAge Old
AOArctic Oscillation
AOAtmosphere-Ocean
AOArea of Operation
AOArea Office
AOAustralian Airlines (IATA airline code)
AOArchives of Ontario
AOAudit Office
AOAnti-Oxidant
AOAcridine Orange
AOAntiOnline (computer security website)
AOAbort Output (TELNET protocol)
AOArgentum Online
AOAuthorizing Official (for IMPAC Purchases)
AOArbeitsgemeinschaft für Osteosynthesefragen (Association for the Study of Internal Fixation)
AOAction Oriented
AOAlexander Ovechkin (hockey player)
AOAutonomous Okrug
AOAdministration Officer
AOAtomic Oxygen
AOAdmit One
AOAction Officer
AOAcademy of Osseointegration
AOApplication Object
AOAutres Objets (Canada universal postal union)
AOAmerican Outlaws (soccer fan group)
AOAircraft Operator
AOAmbleside Online (homeschool curriculum)
AOAtomic Orbital
AOOperational Availability
AOAmphibious Operation
AOAccounts Office
AOAtlas Orthogonal (chiropractic technique; also seen as AOT)
AOAviation Officer
AOAnglicans Online
AOAfrique Orientale (German East Africa)
AOActive Optical
AOAccount Owner
AOAir Officer
AOAir Operation
AOAppeals Office(r)
AOAuslandsorganisation (foreign section of NSdAP)
AOOffice of the Administrator
AOAcousto Optics
AOAerial Observer
AOAnswers Only (educational testing)
AOAtlanto-Occipital (joint)
AOAmerican Outfitters (store)
AOAutomated Office
AOAlpha et Omega (epigraphy)
AOAuxiliary Oiler (Ship Type)
AOAccess Opening
AOAdvanced Organization (Church of Scientology)
AOFly Outs (baseball statistic)
AOAutomated Operations
AOAmbulance Officer (ambulance service; chiefly Australian)
AOAir Observer
AOAtualidades Ornitológicas (Ivaiporã-PR, Brazil)
AOAcquisition Objective
AOAssociated Object
AOAtomic Operation
AOAaron Owens (streetball player)
AOAnnotated Outline
AOAthlitikos Omilos (Greek: Athletic Club)
AOAssignment Officer
AOAsylum Officer (US DHS)
AOAssociate Office
AOAbnormal Occurrence
AOAssembly Order
AOAtelosteogenesis
AOAccredited Organization
AOAssisted Opener (type of knife)
AOAttendees Only
AOAccommodation Officer
AOAccess Ordering
AOAuxiliary Operator (nuclear industry)
AOAnodal Opening
AOAutomags Online
AOAttack Objective
AOAssisted Operations
AOAcronym Overload
AOAortagram
AOaviation ordnance person (US DoD)
AOApostolic Oblates
AOAsia Onlus (Rome, Italy)
AOAirdrome Officer
AOAdministrative Office/ Officer
AOAssociate Post Office (also called associate office)
AOAssociation Orukutuku
AOAeronautical Orders (orders authorizing a military person to perform duties in flight)
AOAwards and Obligations
AOACCS (Army Command and Control System) OSI (Operator System Interface)
AOAerosol Obscurant
AOAir Overseas, Inc.
AOArkansas and Ozarks Railway
AOAccompanying Object
AOApproximate Optimum Method
AO(USN Rating) Aviation Ordnanceman
AOAuthorized Outage
AOAdaptive Onestep (IEEE)
AOAll Out