| Acronym | Meaning |
| PDN | Pull-Down Network |
| OC | Observer/Controller |
| FOH | Front Of House |
| TSO | Tsonga Language (ISO 639-2 Code) |
| DOT | Department Of Transportation (U.S. Federal Or State) |
| MIDAS | Man-machine Integration Design And Analysis System |
| JTLS | Joint Theater Level Simulation |
| GOP | Grand Old Party |
| EW | Electronic Warfare -Exawatt |
| XBA | European Composite Unit (EURCO; Bonds Market Unit) (ISO 4217 Currency Code) |