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What does OA stand for?

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Rank Abbr.Meaning
OAOdessa American (Odessa, TX, USA)
OAOrder of the Arrow (National Honor Society of the Boy Scouts of America)
OAOpen Access
OAOn Air (TV, radio)
OAOffice Automation
OAOffice of Administration
OAOnder Andere (Dutch: Among Others)
OAOvereaters Anonymous
OAOlympic Airways
OAOriginal Article
OAOral Administration (medicine and educational testing)
OAOutside Air
OAOpen Agility (AKC title)
OAOpen Architecture
OAOccupational Asthma
OAOperating Agency
OAOn or About
OAocular albinism
OAOperational Area
OAOffice Action
OAOffice of AIDS (California)
OAOffice of the Administrator
OAOptical Amplifier
OAOperational Assessment
OAOutside Assistance
OAOcciput Anterior (fetal position)
OAOrganization and Administration
OAOut of Action
OAOrthogonal Array
OAOffensive Action
OAOffered Again
OAOctopamine (biogenic amine)
OAOptic Axis
OAOrganizational Assessment
OAOrder of Australia
OAOperations Analyst
OAOperational Availability
OAObstacle Avoidance
OAOsmotic Adjustment
OAOperational Architecture
OAObject Adapter
OAOriental Adventures (gaming)
OAObjective Area
OAOrthogonal Acceleration (mass spectrometry)
OAOff-line Analysis
OAOpportunity Analysis
OAOrder Administration
OAObligational Authority
OAOxford Academy (Cypress, CA)
OAOnline Academy
OAOperational Assistance
OAOperating Agent
OAOffice of Audits
OAOld Assyrian
OAOrdinary Annuity
OAOrientation Advisor (school)
OAOver Aged
OAOrdering Activity
OAOpera America
OAOrdered Aggregate (Differentiated Services Protocol)
OAOnline Alumni
OAOperations Agreement (NASA)
OAOperator Assistant
OAOld Aspen
OAOrienteering Australia (Australian Capital Territory)
OAOversight & Performance Assurance
OAOrigin Agent (transportation industry)
OAOffice of Applications
OAOld Athen
OAOptical Augmentation
OAOrange Anime (Florida japanese culture and media club)
OAOrchestra Atlanta (Atlanta, GA)
OAOperating Authorization
OAOperations Astronomer
OAOverhead Approach
OAOrbit Area
OAOrder of Avalon (gaming)
OAOrbital Analyst
OAOperability Analysis
OAOutput Acknowledge
OAOvarian Atresia
OAOcclusal Amalgam (dentistry)
OAOrbiter Ancillary
OAOperations Aerographer
OAOverton Arm
OAOperational Assist/Assembly
OAOrbital/Orbiter Assembly
OAOrder of Architects (Portugal)
OAOperations Assurance
OAOcean Acidification (marine pollution problem)
OAOakstone Academy (Ohio)
OAOnboard Administrator (software; Hewlett-Packard)
OAOutput Axis
OAOrganizing Authority (various organizations)

Note: We have 57 other definitions for OA in our Acronym Attic

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