| Acronym | Meaning |
| PNF | Pilot Not Flying (aviation) |
| XIV | Fourteen (in Roman Numerals) |
| UDT | Underwater Demolition Team |
| TOT | Time On Target |
| FPF | Final Protective Fire |
| WST | Water Soluble Tetrazolium (assay) -Samoan Tala (ISO 4217 Currency Code) |
| B2C | Business-to-consumer Electronic Commerce |
| DCI | Detection |
| HRT | Hormone Replacement Therapy |
| SMIL | Sadomasochisterne I Landet (Danish SM Organisation) |