All abbreviations and full forms starting with O

Browse 50 abbreviations beginning with "O".

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Abbreviation Full Form Category
OSOverly ShortOthers
OsOverseas✓ VerifiedOthers
OSOverseas StudiesOthers
OSoverstock(ed)Others
OSOvertly SimilarOthers
OSOwnage SquadOthers
OSOxidative StressOthers
OSOxygen SaturationOthers
OS & EOperating Supplies & EquipmentOthers
OS (CDER)Operations Staff (Center for Drug Evaluation and Research)Others
OS (CFSAN)Office of Seafood (CFSAN)Others
OS (OC)Operations Staff (Office of the Commissioner)Others
OS&DOver, Short, and DamagedOthers
OS&EOperating Supplies and EquipmentOthers
OS-JTFOpen Systems - Joint Task ForceOthers
OS/2Obsolete Soon, TooOthers
OS/2Operating System/2Others
OS/2Operating System/2 (IBM-Microsoft)Others
OS/360IBM 360 Operating SystemOthers
OS/360IBM 360 operating system (1960s)Others
OS/IOf Scientific Investigation✓ VerifiedOthers
OS1Officer's Steward 1st Class (non Petty Officer)Others
OS1Operations Specialist Petty Officer 1st ClassOthers
OS2Officer's Steward 2nd Class (non Petty OfficerOthers
OS2Operating System TwoOthers
OS2Operations Specialist Petty Officer 2nd ClassOthers
OS2Ordinary Seaman 2nd ClassOthers
OS2OS/2 Important FileOthers
OS3Officer's Steward 3rd Class (non Petty Officer)Others
OS3Operations Specialist Petty Officer 3rd ClassOthers
OS3BOpen Software Blanc Bleu BelgeOthers
OSAOakland School for the ArtsOthers
OSAObject Oriented Systems AnalysisOthers
OSAObject Storage ArchitectureOthers
OSAObservability Subspace AlgorithmOthers
OSAObstructive Sleep ApneaOthers
OSAObstructive sleep apneasOthers
OSAObstructive Sleep ApnoeaOthers
OSAObstructuve Sleep ApneaOthers
OSAOffice of Special AffairsOthers
OSAOffice of Student ActivitiesOthers
OSAOffice of Student AffairsOthers
OSAOffice of the Science AdvisorOthers
OSAOffice of the Secretary of the ArmyOthers
OSAOffice of the State ArchitectOthers
OSAOffice of the State AuditorOthers
OSAOffice Support AssistantOthers
OSAOffice Systems ArchitectureOthers
OSAOfficial Secrets ActOthers
OSAOfficials Secret ActOthers
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