| Acronym | Meaning |
| FSK | Federal'naya Sluzhba Kontrrazvedki (???????????? ??????? ?????????????? |
| NIST | National Institute Of Standards And Technology |
| WPB | War Production Board During World War II |
| EKG | Electrocardiogram (from German Elektrokardiogramm) |
| PBDE | PolyBrominated Diphenyl Ether |
| 4WD | Four Wheel Drive (cf. AWD) |
| HUN | Hungary (ISO 3166 Trigram) |
| NHB | New Hebrides (ISO 3166 Trigram; Obsolete 1980) |
| HIT | Head Injection Technology |
| TEAL | Tasman Empire Airways Limited |