| Acronym | Meaning |
| GI | Galvanised Iron - Gastro-Intestinal - General Issue -Gibraltar (ISO 3166 Digram; FIPS 10-4 Territory Code) -Government Issue |
| CASTFOREM | Combined Arms And Support Task FORce Evaluation Model |
| CMOS | Canadian Meteorological And Oceanographic Society - Complementary Metal-Oxide-Semiconductor |
| CTDB | Compact Terrain Data Base (file Format) |
| ADI | Acceptable/Allowable Daily Intake |
| STRICOM | U.S. Army Simulation |
| GPS | General Problem Solver - Global Positioning System |
| SPIE | Originally The Society For Photo-Optical Instrumentation Engineers (SPIE - The International Society For Optical Engineering 1981?2007 |
| SCIFI | Science Fiction |
| MSD | Minimum Safe Distance |