| Acronym | Meaning |
 | SMA | Scan Mirror Assembly |
| JPY | Japanese Yen (ISO 4217 Currency Code) |
| CY | Welsh Language (ISO 639-1 Code) |
| AM | Americium |
| WHO | World Health Organisation |
| BSA | Birmingham Small Arms (motorcycles Company) - Boy Scouts Of America - Brigade Support Area |
| IJN | Imperial Japanese Navy (World War II) |
| NKVD | Narodnyi Komissariat Vnutrennikh Del (Russian People's Commissariat Of Internal Affairs) (1934-1954) |
| SATB | Soprano Alto Tenor Bass |
| BML | Battle Management Language |
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