| Acronym | Meaning |
 | CAA | Canadian Automobile Association - (NORAD) Center For Aerospace Analysis - (U.S.) Center For Army Analysis - (U.S.) Clean Air Act - (U.S. Army) Concepts Analysis Agency - Civil Aviation Authority - Colonial Athletic Association |
| PTL | Patrol -Primary Target Line |
| C | Carbon - Coulomb - One Hundred (in Roman Numerals) |
| SPEAC | Stop Primate Experiments At Cambridge (later Became SPEAK) |
| RW | Kinyarwanda Language (ISO 639-1 Code) |
| IRM | Illinois Railway Museum - Inzhenernaya Razvedyvatelnaya Mashina (Russian ?????????? ???????????????? ?????? |
| DBF | Detection By Fire (weapon Launch Signature) |
| AAAV | Advanced Amphibious Assault Vehicle |
| CI | Curie |
| BVT | Bouvet Island (ISO 3166 Trigram) |
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