| Acronym | Meaning |
 | RA | Radium |
| SBA | Simulation-Based Acquisition - Sovereign Base Area |
| GIP | Gibraltar Pound (ISO 4217 Currency Code) |
| CYP | Cyprus (ISO 3166 Trigram) - Cyprus Pound (ISO 4217 Currency Code) |
| LR | Liberia (ISO 3166 Digram) |
| CCRP | Command And Control Research Program |
| AY | Aymara Language (ISO 639-1 Code) |
| MCDL | Model Composition Definition Language |
| BRB | Barbados (ISO 3166 Trigram) -Be Right Back (Internet Chat Abbreviation) |
| IRS | U.S. Internal Revenue Service |
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