| Acronym | Meaning |
 | DFCB | Data Format Control Book |
| IAAL | I Am A Lawyer |
| RA | Rain (METAR Code) -Rear Area - Reinforced Alert - Republican Army - Right Ascension - Royal Artillery (UK) - Royal Academy |
| SMX | Server Macro EXpansion |
| AARP | (i/s) American Association Of Retired Persons (now Officially Known Only By The Initials) |
| RB | Rubidium |
| BISEPS | Battlefield Identification System Environment Performance Simulation |
| THA | Thai Language (ISO 639-2 Code) |
| AGU | American Geophysical Union |
| UCAV | Unmanned Combat Air Vehicle |
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