| Acronym | Meaning |
| TAC | U.S. Tactical Air Command (1946-1992) |
| IER | Information Exchange Requirement |
| ELM | Edge-Localised Mode (plasma Physics) |
| CAP | Combat Air Patrol - Civil Air Patrol - Common [Operating/Operational] Air Picture - Crisis Action Procedures - Common Agricultural Policy |
| WTH | What The Hell |
| XH | Xhosa Language (ISO 639-1 Code) |
| ZM | Zettametre |
| BHR | Bahrain (ISO 3166 Trigram) |
| JMS | Java Message Service |
| AAIS | Advanced Airborne Interceptor Simulator |