| Abbreviation | Definition |
|---|---|
| UVX | Ultra-Violet Cosmic Background eXperiment |
| UVX | Ultra-Violet Explorer |
| UWI | Un-Written Instructions |
| UWS | United We Stand |
| UWS | User Work Station |
| UXI | Juliet ( Uranus Satellite 11) |
| UXV | Puck (Uranus satellite 15) |
| UXVI | Caliban (Uranus satellite 16) |
| UXVII | Sycorax (Uranus satellite 17) |
| UXVIII | Prospero (Uranus satellite 18) |
| UXX | Stephano (Uranus satellite 20) |
| V | Valve |
| V | Velocity |
| V | Vent |
| V | Verb |
| V | Vertical |
| V | Voice |
| V | Volt |
| V | Voltage |
| V&DA | Video and Data Acquisition |