| Acronym | Meaning |
 | HIWT | Hobart Institute Of Welding Technology |
| IDR | Indonesian Rupiah (ISO 4217 Currency Code) |
| SOM | Simulation Object Model -Somalia (ISO 3166 Trigram) |
| OHC | OverHead-Cam Engine |
| EOSAT | Earth Observation Satellite |
| JT | Johnston Atoll (ISO 3166 Digram; Obsolete 1986) -Junior Technician (RAF) |
| DBA | De Bellis Antiquitatis (miniature Wargaming Rules) |
| MCM | Mine Counter-Measures |
| CINEOS | Campo Imperatore Near-Earth Objects Survey |
| FAO | Faroese Language (ISO 639-2 Code) |
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