| Acronym | Meaning |
| MAH | Marshallese Language (ISO 639-2 Code) |
| NU | Nicaragua (FIPS 10-4 Country Code) - Niue (ISO 3166 Digram) - Nunavut (postal Symbol) |
| N | Nano |
| ITK | In The Know |
| KAU | Kanuri Language (ISO 639-2 Code) |
| D/B/A | Doing Business As |
| USSR | Union Of Soviet Socialist Republics |
| NAVSPASUR | U.S. Naval Space Surveillance System |
| AK | Attokelvin |
| GMB | The Gambia (ISO 3166 Trigram) -General |