| Abbreviation | Definition |
|---|---|
| TWIO | The War Is Over |
| TWIS | Tactical WWMCCS (World Wide Military Command and Control System) Information System |
| TWJN | Tactical Wireless Joint Network |
| TWL | Training With Launcher |
| TWM | The Widow Maker |
| TWO | Tactical Warfare Operations |
| TWOS | Tactical Weather Observing System |
| TWOT | The War On Terrorism |
| TWOT | The Weapon of Theory |
| TWPL | Teletypewriter Private Line |
| TWPS | Tactical Water Purification System |
| TWR | Tactical Weather Radar |
| TWR | Tower |
| TWS | Texas Weapon Systems |
| TWS | Thermal Weapon Sight |
| TWS | Track While Scan |
| TWSTIAC | Tactical Warfare Simulation and Technology Info Analysis Center |
| TWT | Two Week Training |
| TWV | Tactical Wheeled Vehicle |
| TWVM | Tactical Wheeled Vehicle Modernization |