Army & Military Abbreviations and Acronyms

1. OC
   Officer In Charge
2. OC
   Operational Control
3. OCC
   Obus à Charge Creusé (shaped-charge shell)
4. OCOKA
   Observation and fields of fire, Cover and concealment, Obstacles, Key terrain, and Avenues of Approach.
5. OCSW
   Objective Crew-Served Weapon
6. OCU
   Operational Centre Unit
7. ODE
   Ordnance Development and Engineering (Singapore)
8. OEG
   Occluded Eye Gunsight (a type of Collimator sight)
9. OEO
   Optical and Electro-Optical
10. OF
    Degrees Fahrenheit
11. OFSA
    Objective Family of Small Arms
12. OFW
    Objective Force Warrior
13. OHWS
    Offensive Hand Weapon System
14. OIC
    Officer In Charge
15. OICW
    Objective Individual Combat Weapon (rifle)
16. OINC
    Officer In Charge
17. OO
    Operations Order
18. OOTW
    Operations Other Than War (now SSO)
19. OP
    Observation Post
20. OP
    Operator Panel

Last updated: May 24, 2020 — Total entries: 5,570