| Acronym | Meaning |
| MES | Marconi Electronic Systems - Medium Edison Screw |
| AVIM | Aviation Intermediate Maintenance |
| WY | Wyoming (postal Symbol) |
| LY | Libya (FIPS 10-4 Country Code; ISO 3166 Digram) - Lithuania (amateur Radio ITU Prefix) |
| LCOL | Lieutenant-Colonel (Canada |
| FS | Femtosecond |
| MNB | Multinational Brigade |
| VUT | Vanuatu (ISO 3166 Trigram) |
| XBA | European Composite Unit (EURCO; Bonds Market Unit) (ISO 4217 Currency Code) |
| TOA | Table Of Authorities - Total Obligation Authority (accounting) |