| Acronym | Meaning |
| BYR | Belarusian Ruble (ISO 4217 Currency Code) |
| SPA | Spanish Language (ISO 639-2 Code) |
| FI | Finnish Language (ISO 639-1 Code) |
| MJD | Modified Julian Day |
| NSW | New South Wales (postal Symbol) |
| POT | Plane Of Tranquility |
| PDRY | People's Democratic Republic Of Yemen (obsolete Since 1990) |
| EL | Exalitre |
| GLUT | OpenGL Utility Toolkit |
| DARPA | U. S. Defense Advanced Research Projects Agency |