| Acronym | Meaning |
| C2W OR C?W | Command And Control Warfare |
| MRSA | Methicillin-resistant Staphylococcus Aureus |
| GI | Galvanised Iron - Gastro-Intestinal - General Issue -Gibraltar (ISO 3166 Digram; FIPS 10-4 Territory Code) -Government Issue |
| NK | Nanokelvin |
| DR | Dead Reckoning -Dominican Republic (FIPS 10-4 Country Code) -Danmarks Radio (Danish Broadcasting Corporation) |
| FID | Foreign Internal Defence |
| AGU | American Geophysical Union |
| SOFIA | Stratospheric Observatory For Infrared Astronomy |
| OPP | Ontario Provincial Police - Operational Planning Process - Other People's Privates |
| WAC | Women's Auxiliary Corps (WWII Canada) |