Governmental & Military Abbreviations and Acronyms

1. OSI
   Office of Special Investigation
2. OSI
   Open Sytem Interconnection
3. OSI RM
   Osi Reference Model
4. OSI/CS
   Communications Subsystem
5. OSIF
   Oh Shit, I Forgot
6. OSIM
   Oh Shoot It'S Monday
7. OSIP
   Office Safety Inspection Program
8. OSIP
   Operational Safety & Improvement Program
9. OSIRM
   Osi Reference Model
10. OSIS
    Ocean Surveillance Information System
11. OSL
    Object Selection Language
12. OSM
    Office of Surface Mining
13. OSM
    US Office of Surface Mining Reclamation and Enforcement
14. OSMA
    On-Site Maintenance Agreement
15. OSMN
    Operations and Maintenance-navy (funds)
16. OSN
    Operator Security Number
17. OSN
    Online Scouting Network
18. OSNS
    Open Systems Network Support
19. OSO
    Office of Satellite Operations
20. OSO
    Office of Space Operations

Last updated: May 24, 2020 — Total entries: 74,797