| Acronym | Meaning |
| CFAR | Christine's - Federal Acquisition Regulation |
| OEA | (U.S.) Office Of Economic Adjustment |
| ICRS | International Celestial Reference System |
| C2IS OR C?IS | Command And Control Information System |
| SNR | SuperNova Remnant - Signal-to-Noise Ratio |
| SICS | Swedish Institute Of Computer Science |
| MAR | Morocco (ISO 3166 Trigram) |
| LWS | Land Warrior System |
| LSIF | Labour Sponsored Investment Fund |
| BRS | Battlefield Reasoning System |