• What does OS Stand For in Government & Military ?

    For OS we have found 415 definitions.

  • What does OS mean? We know 415 definitions for OS abbreviation or acronym in 8 categories. Possible OS meaning as an acronym, abbreviation, shorthand or slang term vary from category to category. Please look for them carefully.

OS Stands For:

All acronyms (415)Airports & Locations (3)Business & Finance (17)Common (9)Government & Military (49)Medicine & Science (87)Chat & Sub Cultures (13)Education Schools (24)Technology, IT etc. (41)
RankAbbreviationMeaning
*****OSOperating Software
NASA Application Software		  
*****OSOrdnance Survey
IT Terminology Rail transport Anthropology Archaeology History		  
****HHS OSHealth and Human Services Office of the Secretary
  
****OSObservers School
Air Force Armed forces Royal military		  
***OSOverseas
Army & Military		  
**OSOffice Support
  
**OSOperational Security
  
**OSOne Side
  
**OSon Service
  
**OSOh, Shit
  
**OSOn Schedule
  
*OSOrdinary Seaman
United States Amy Rank 		  
*OSOwn Ship
  
*OSOn Scene
  
*OSOffensive Support
  
*OSOn Station
  
*OSOptical Sight
  
*OSOperations Specialist
  
*OSOcean Surveillance
  
*OSOperations Squadron
  
*OSOnboard Software
  
*OSOffice of Security
  
*OSOvertime Scheduled
  
*OSOrbital Station
  
*OSObservation Squadron