| Acronym | Meaning |
| MATS | U.S. Military Air Transport Service (1948-1966) |
| RWR | Radar Warning Receiver |
| IMPACT | International Medical Products Anti-Counterfeiting Taskforce |
| IMDB | Internet Movie Database |
| TMAP | Texas Medication Algorithm Project |
| AN | Andorra (FIPS 10-4 Country Code) - Netherland Antilles (ISO 3166 Digram) |
| DOA | Dead On Arrival - Dead Or Alive |
| HURD | Hird Of Unix-Replacing Daemons (cf. Hird) |
| SCT | Scattered Sky (METAR Code) |
| IG | Inspector General |