| Abbreviation | Definition |
|---|---|
| GWCT | Government Witnessed Contractor Testing |
| GWEN | Ground Wave Emergency Network |
| GWF | Great Weapon Fighter |
| GWIP | Global Weather Intercept Program |
| GWM | Graphics Win Mark |
| GWO | Government Watch Officer |
| GWOT | Global War On Terror |
| GWOT | Global War on Terrorism |
| GWP | General War Plan |
| GWS | Geneva Convention for the Amelioration of the Condition of the Wounded and Sick In Armed Forces in the Field |
| GWS | guided weapon system |
| GWSSEA | Geneva Convention for the Amelioration of the Condition of the Wounded, Sick, and Shipwrecked Members of the Armed Forces at Sea |
| GWTP | Get With The Program |
| GWTS | Guided Weapon Trajectory Software |
| GWW | Great Western War |
| GY | Gunnery |
| GYSGT | Gunnery Sergeant |
| GZC | Goodyear- Zeppelin Corporation |
| GZD | Ground Zero Damage |
| H | Hero |