| Acronym | Meaning |
| PL | Polish Language (ISO 639-1 Code) |
| KTS | Knight Of The Tower And Sword (of Portugal) |
| SNR | SuperNova Remnant - Signal-to-Noise Ratio |
| DJF | Djibouti Franc (ISO 4217 Currency Code) |
| NSB | Norges Statsbaner (Norwegian State Railways) |
| HFE | Human Fertilisation And Embryology (UK Act) |
| FARC | Fuerzas Armadas Revolucionarias De Colombia (Spanish |
| USNH | United States Naval Hospital |
| AF | Afghanistan (FIPS 10-4 Country Code; ISO 3166 Digram) -Air Force |
| GDW | Game Designers Workshop |