| Acronym | Meaning |
| ERA | Earned Run Average - Engineering Research Associates - Equal Rights Amendment - English Racing Automobiles - European Railway Agency |
| FI | Finnish Language (ISO 639-1 Code) |
| B10 | Ben 10 |
| EF | Entry Foyer |
| KV | Kilovolt |
| ESH | Western Sahara (ISO 3166 Trigram) |
| COFT | Conduct Of Fire Trainer (military) |
| JTRS | Joint Tactical Radio System (jitters) |
| TIBS | Tactical Information Broadcast System |
| TACP | Tactical Air Control Party - Technology Applications Certification Program |