| Acronym | Meaning |
| A/C | Air Conditioned/Conditioning - Aircraft |
| FRA | Federal Railroad Administration -France (ISO 3166 Trigram) |
| DRMS | (U.S.) Defense Revitalization And Marketing Service |
| TW | Republic Of China (Taiwan) (ISO 3166 And FIPS 10-4 Country Code Digram) - Terawatt |
| PEEK | PolyEtherEtherKetone |
| SN | Senegal (ISO 3166 Digram) - Singapore (FIPS 10-4 Country Code) - Snow (METAR Code) - SuperNova-Screen Name |
| EFF | Electronic Frontier Foundation |
| ALAP | As Long/Late As Possible |
| TVR | TreVor (Wilkinson) Racing |
| GE | Germanium |