| Acronym | Meaning |
| MISSI | Multilevel Information System Security Initiative |
| CIO | Chief Information Officer - Congress Of Industrial Organizations |
| SOLIS | Synoptic Optical Long-term Investigations Of The Sun |
| KK | Kazakh Language (ISO 639-1 Code) |
| AIRS | Aerometric Information Retrieval System (obsolete; Replaced With AFS) |
| CU | Copper (Latin Cuprum) |
| YOR | Yoruba Language (ISO 639-2 Code) |
| AFS&A OR AFSA | U.S. Air Force Studies And Analysis |
| ORB | #NAME? |
| FEDEP | Federation Development Process (Simulation) |