| Acronym | Meaning |
| AHA | American Heart Association |
| FY | West Frisian Language (ISO 639-1 Code) |
| HETT | Heavy Equipment Transporting Truck / Heavy Equipment Truck Tractor |
| QUASAR | Quasi-stellar Radio Source |
| DOHC | Dual-OverHead-Cam Engine |
| ELM | Edge-Localised Mode (plasma Physics) |
| AVGP | Armoured Vehicle |
| NHB | New Hebrides (ISO 3166 Trigram; Obsolete 1980) |
| NTZ | Iraq-Saudi Arabia Neutral Zone (ISO 3166 Trigram; Obsolete 1993) |
| FG | Femtogram |