| Acronym | Meaning |
| BMDG | British Military Doctrine Group |
| USNI | United States Naval Institute |
| MIRV | Multiple Independent Reentry Vehicle |
| AAFC | U.S. Army Air Corps Ferrying Command (1941-1942) - All-America Football Conference (1946?1949) |
| ISP | International Standardized Profile - Internet Service Provider - Information Systems Professional |
| POSSLQ | Person Of The Opposite Sex Sharing Living Quarters |
| PEBKAC | Problem Exists Between Keyboard And Chair (ditto) |
| IA | Interlingua Language (ISO 639-1 Code) |
| AJ | Azerbaijan (FIPS 10-4 Country Code) |
| ERN | Eritrean Nakfa (ISO 4217 Currency Code) |