| Acronym | Meaning |
| FWT | Fresh Water Tank |
| KHM | Khmer Language (ISO 639-2 Code) |
| ISEF | Intel International Science And Engineering Fair |
| SCN | Suprachiasmatic Nucleus |
| PUS | Pashto Language (ISO 639-2 Code) |
| JN | Jan Mayen Island (FIPS 10-4 Territory Code) |
| GFI | Ground Fault Interruptor (aka GFCI) |
| AFS | Active Front Steering - Air Facility Sub-System - Amniotic Fluid-derived Stem Cell |
| DRA | Defence Research Agency (UK |
| RRN | Recurrence Rate Number |