| Acronym | Meaning |
| ADC | Aide De Camp - U.S. Air Defense Command (1946-1992) - Apple Display Connector - Program Against Digital Counterfeiting Of Currency |
| C3 OR C? | Colorectal Cancer Condition - Command |
| ARWG | Army Research Working Group (are-wig) |
| SCUBA | Self Contained Underwater Breathing Apparatus |
| AFK | Away From Keyboard (Internet Chat Abbreviation) |
| EDAC | Error Detection And Correction |
| HRH | His (or Her) Royal Highness |
| CGS | Chief Of The General Staff |
| ERN | Eritrean Nakfa (ISO 4217 Currency Code) |
| CAFAD | Combined Arms For Air Defence |