| Acronym | Meaning |
| IDO | Ido Language (ISO 639-2 Code) |
| MATREX | Modeling Architecture For Technology |
| AFSC | U.S. Air Force Staff College (obsolete; Replaced With JFSC). - U.S. Air Force Systems Command |
| WK | Wake Island (ISO 3166 Digram |
| ICV | Infantry Carrier Vehicle |
| CHN | China (ISO 3166 Trigram) |
| DFID | UK Department For International Development |
| PCIE | Peripheral Component Interconnect Express (computer Bus) |
| NA | Sodium |
| LOD | Limit Of Detection - See Detection Limit |