| Acronym | Meaning |
 | DTSA | (U.S.) Defense Technology Security Administration |
| AL | Attolitre |
| HTS | High-Temperature Superconducting Wire |
| IRST | Infra-red Search And Track |
| FET | Field-Effect Transistor |
| NWFZ | Nuclear-Weapon-Free Zone |
| IFF | Identification |
| BC | Before Christ - Blind Copy (in Emailers) - Boston College -Botswana (FIPS 10-4 Country Code; From Bechuanaland) - British Columbia (postal Symbol) |
| EEK | Estonian Kroon (ISO 4217 Currency Code) |
| KUR | Kurdish Language (ISO 639-2 Code) |
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