| Acronym | Meaning |
| ARTCC | Air Route Traffic Control Center |
| CZ | Combat Zone -Czech Republic (ISO 3166 And FIPS 10-4 Country Code Digram) |
| VMN | VentroMedial Nucleus (neurophysiology) |
| AV | Avar Language (ISO 639-1 Code) |
| ESL | English As A Second Language |
| MASH | Mobile Army Surgical Hospital |
| TBT | Tributyltin |
| ABIN | Ag?ncia Brasileira De Intelig?ncia (Brazilian Intelligence Agency) |
| NAO | UK National Audit Office |
| AS | American Samoa (postal Symbol; ISO 3166 Digram) - Australia (FIPS 10-4 Country Code) |