| Acronym | Meaning |
| ACTU | Australian Council Of Trade Unions |
| CAA | Canadian Automobile Association - (NORAD) Center For Aerospace Analysis - (U.S.) Center For Army Analysis - (U.S.) Clean Air Act - (U.S. Army) Concepts Analysis Agency - Civil Aviation Authority - Colonial Athletic Association |
| JSTARS | Joint Surveillance Target Attack Radar System (djay-starz) |
| NEX | Navy EXchange |
| SNU | Solar Neutrino Unit |
| HESH | High-Explosive |
| BH | Bihari Languages (ISO 639-1 Code) |
| RESNA | Rehabilitation Engineering And Assistive Technology Society Of North America |
| KA | Georgian Language (ISO 639-1 Code) |
| MIL | AASPEM -Man-In-the-Loop AASPEM |