OS Meaning in Governmental

OS means Ordnance Survey in Governmental.

OS can also mean Other Source, Outside Scope, Old Skool, On Sea, On Service, On Station, Operating Strength, Operating System, Operations Specialist, Opportunity to Serve, Ordinary Seaman, Other Specifications, Outer Sensor, Overtly Similar, On-orbit Station, Operating Software, Operating System, Optics Subsystem, Orbital Servicing, Orbiter Specification, Outer Space, Optional Stopping, Other Supplementary.