| Acronym | Meaning |
| LX | Luxembourg (amateur Radio ITU Prefix) - Swiss International Airlines (IATA Code) |
| BOFH | Bastard Operator From Hell |
| IFV | Infantry Fighting Vehicle |
| VFR | Visual Flight Rules |
| FE | Iron (Latin Ferrum) |
| BDOS | Basic Disk Operating System; Part Of CP/M |
| YL | Yoctolitre |
| CCII | Command And Control Information Infrastructure |
| J1 | Joint [Manpower &] Personnel Directorate |
| ENG | English Language (ISO 639-2 Code) |