| Acronym | Meaning |
| HU | Hungary (ISO 3166 Digram; FIPS 10-4 Country Code) |
| TND | Tunisian Dinar (ISO 4217 Currency Code) |
| BBD | Barbados Dollar (ISO 4217 Currency Code) |
| RUB | Russian Ruble (ISO 4217 Currency Code) |
| RHIC | Relativistic Heavy Ion Collider |
| TATP | TriAcetone TriPeroxide |
| STDM | Statistical Time Division Multiplexing |
| PTAN | Precision Terrain Aided Navigation |
| LA | Laos (FIPS 10-4 Country Code; ISO 3166 Digram) -Los Angeles -Louisiana (postal Symbol) |
| SAAB | Svenska Aeroplan AB (Swedish Aircraft And Automobile Manufacturer) |