| Acronym | Meaning |
| AGP | Accelerated Graphics Port |
| DEPSECDEF | (U.S.) Deputy Secretary Of Defense |
| RFA | Restrictive Fire Area (military) - Royal Field Artillery |
| Q2 | Second Quarter |
| MEI | Matsushita Electric Industrial Co. |
| BTID | Battlefield Target Identification Device |
| YS | Yottasecond |
| FXX | Metropolitan France (ISO 3166 Trigram; Obsolete 1997) |
| DCI | Detection |
| NB | Niobium |