| Acronym | Meaning |
| IOT | British Indian Ocean Territory (ISO 3166 Trigram) |
| WRT | With Respect To |
| MK | Air Mauritius (IATA Code) - Macedonia (ISO 3166 Digram; FIPS 10-4 Country Code) -Mandalskameratene (Norwegian Football Club) -Megakelvin -Missionary Kid - Mortal Kombat (game) |
| MA | Megaannum |
| SOFIA | Stratospheric Observatory For Infrared Astronomy |
| SCHIMS | Soldier Combat Helmet Identification Marking System |
| AJ | Attojoule |
| HMM | Hidden Markov Model |
| HJD | Heliocentric Julian Day |
| ASMP | Air-Sol Moyenne Port?e Missile (French Medium-range Air To Surface) -Asymmetric Multiprocessing |