| Acronym | Meaning |
| MARCENT | United States Marine Forces Central Command |
| CH | Chamorro Language (ISO 639-1 Code) |
| INSAR | Interferometric Synthetic Aperture Radar |
| TOS | Tape Operating System - Terms Of Service - Tramiel Operating System |
| TW | Republic Of China (Taiwan) (ISO 3166 And FIPS 10-4 Country Code Digram) - Terawatt |
| COPE | U.K. Committee On Publication Ethics |
| ACT | Adaptive Control Of Thought (cognitive Model) ? Australian Capital Territory (postal Symbol) ? American College Test(ing Program) |
| BOL | Bolivia (ISO 3166 Trigram) |
| FSA | Fire Support Area - UK Food Standards Agency - Functional Solution Analysis |
| ISIS | Institute For Science And International Security |