| Acronym | Meaning |
| GY | Guyana (FIPS 10-4 Country Code; ISO 3166 Digram) |
| MOD | Ministry Of Defence (United Kingdom) And Various Other Countries |
| MTF | Medical Treatment Facility - Message Text Format |
| MMK | Burmese Kyat (ISO 4217 Currency Code) |
| LC2IEDM OR LC?IEDM | Land C2IEDM (q.v.) |
| SIA | Singapore Airlines (ICAO Code) |
| TBM | Tactical Ballistic Missile - Theatre Ballistic Missile |
| ACMC | (U.S.) Assistant Commandant Of The Marine Corps |
| PRK | Democratic People's Republic Of Korea (ISO 3166 Trigram) |
| OS | Osmium |