| Acronym | Meaning |
| MBCS | Multi-Byte Character Set |
| YJ | Yottajoule |
| HI | Hindi Language (ISO 639-1 Code) |
| HRM | His (or Her) Royal Majesty |
| NAAD | North American Air Defense |
| GLV | Manx Language (ISO 639-2 Code) |
| DPST | Double-Pole Single-Throw |
| BVT | Bouvet Island (ISO 3166 Trigram) |
| SHN | Saint Helena (ISO 3166 Trigram) |
| FSC | Federal Supply Classification -Forest Stewardship Council (ecological Pressure Group) |