| Acronym | Meaning |
 | OM | Oromo Language (ISO 639-1 Code) |
| OMN | Oman (ISO 3166 Trigram) |
| UCBSA | United Cricket Board Of South Africa |
| Q2 | Second Quarter |
| THAAD | Theatre High Altitude Area Defence |
| HIM | His (or Her) Imperial Majesty |
| RMS | Rate-Monotonic Scheduling - Richard M. Stallman - Root-Mean-Square - Royal Mail Ship (e.g. RMS Titanic) |
| ESM | Electronic Warfare Support Measures |
| FPS | Frames Per Second (motion Pictures |
| GO | Glorioso Islands (FIPS 10-4 Territory Code) |
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