| Acronym | Meaning |
| PABX | Private Automated Branch EXchange (company Phone System) |
| TAAR | Trace Amine-Associated Receptor |
| LYD | Libyan Dinar (ISO 4217 Currency Code) |
| NHL | National Hockey League |
| AFSC | U.S. Air Force Staff College (obsolete; Replaced With JFSC). - U.S. Air Force Systems Command |
| MK | Air Mauritius (IATA Code) - Macedonia (ISO 3166 Digram; FIPS 10-4 Country Code) -Mandalskameratene (Norwegian Football Club) -Megakelvin -Missionary Kid - Mortal Kombat (game) |
| IQ | Idem Quod (Latin |
| MSL | Mars Science Laboratory - Mean Sea Level -Missile |
| IRSN | Institut De Radioprotection Et De S?ret? Nucl?aire (French |
| CEPT | Conf?rence Europ?enne Des Administrations Des Postes Et Des T?l?communications (French |