| Acronym | Meaning |
| IST | Information System Technology - UCF Institute For Simulation And Training |
| MS | Megasecond |
| EIA | Environmental Impact Assessment |
| SAW | Squad Automatic Weapon - Surface Acoustic Wave |
| ASD(HA) | (U.S.) Assistant Secretary Of Defense (Health Affairs) |
| 4D | Four-dimensional (usually Three Spatial Plus One Temporal Dimension |
| SRAM | Static Random Access Memory (ess-ram) |
| MBT | Main Battle Tank |
| BYS | Byelorussian Soviet Socialist Republic (ISO 3166 Trigram; Obsolete Since 1992) |
| GF | French Guiana (ISO 3166 Digram) - Gigafarad |