| Acronym | Meaning |
| AGARD | Advisory Group For Aerospace Research And Development |
| EN | Corps Of Engineers -Estonia (FIPS 10-4 Country Code) - Exanewton |
| BNF | Backus-Naur Form (computing) |
| MBCC | Migratory Bird Conservation Commission (U.S.) |
| CA | California (postal Symbol) - Canada (FIPS 10-4 Country Code; ISO 3166 Digram) - Catalonia -Civil Affairs - Close Armour - Computer Associates - Counter-Air |
| IIRC | If I Recall/Remember Correctly |
| BRA | Brazil (ISO 3166 Trigram) |
| GCCS | Global Command And Control System (geeks) |
| VA | Vatican City-State (ISO 3166 Digram) -Veterans Affairs (U.S. Department Of) -Virginia (postal Symbol) |
| FOH | Front Of House |