| Acronym | Meaning |
| CD1 | Cluster Of Differentiation 1 (a Small Gene Family) |
| LTDP | Long-Term Defence Plan |
| PBX | Private Branch EXchange (company Phone System) |
| BGN | U.S. Board On Geographic Names -Bulgarian Lev (ISO 4217 Currency Code) |
| SLPH | Standard Litre Per Hour (air Flow) |
| HBV | Hepatitis B Virus |
| COS | Corsican Language (ISO 639-2 Code) - Cosine |
| RHO | Southern Rhodesia (ISO 3166 Trigram; Obsolete 1980) |
| AGA | AB Gas-accumulator (ah-gah |
| SE | Northern Sami Language (ISO 639-1 Code) |