| Acronym | Meaning |
| TW | Twi Language (ISO 639-1 Code) |
| WY | Wyoming (postal Symbol) |
| VT | Vatican City-State (FIPS 10-4 Country Code) - Vermont (postal Symbol) -Video Tape |
| NAU | Nauruan Language (ISO 639-2 Code) |
| AZ | Arizona (postal Symbol) - Azerbaijan (ISO 3166 Digram) |
| KAL | Kalaallisut Language (ISO 639-2 Code) |
| CAS | Chemical Abstracts Service - Chief Of The Air Staff - Close Air Support |
| USAAVNC | U.S. Army AViatioN Center |
| AJD | Astronomical Julian Day |
| DF OR DF | lectricit? De France (French |