Governmental & Military Abbreviations and Acronyms

1. ORS
   Outer Rim Scouts
2. ORSS
   Oregon Revised Statutes
3. ORT
   Oak Ridge Tennessee
4. ORT
   Orbit Readiness Test
5. ORT
   Object Relations Technique
6. ORT
   Oral Rehydration Therapy
7. ORT
   Operational Readiness Test
8. ORT
   Operationally Ready Time
9. ORTHOGR
   Orthography
10. ORTU
    Operational & Refresher Training Unit
11. ORTU
    Operational and Refresher Training Unit
12. ORU
    Orbital Replacement Unit
13. ORV
    Off Road Vehicle
14. ORW
    Olentangy River Wetland Research Park
15. ORW
    Operation Rescue West
16. ORWH
    Office of Research on Women's Health
17. ORWRP
    Olentangy River Wetland Research Park
18. OS
    Office of The Secretary
19. OS
    Operating System
20. OS
    Operations Support

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