| Acronym | Meaning |
 | UUT | Unit Under Test |
| UV | Microvolt |
| UV | Ultraviolet |
| UV | Under Voltage (U/V Preferred) |
| UVD | Under Voltage Device |
| UVF | Unmanned Vertical Flight |
| UW | Microwatt |
| UWS | User Work Station |
| V | Valve |
| V | Velocity |
| V | Verb |
| V | Voice |
| V | Volt |
| V | Voltage |
| V | P-PVolt Peak-to-Peak |
| V&DA | Video And Data (Processing) Assembly |
| V&DA | Video And Data Acquisition |
| V&V | Validation And Verification |
| V-A | Vibro-Acoustic |
| V-A | Volt-Ampere |
| V-BAR | Velocity Vectory Axis |
| V-CITE | Vertical-Cargo Integration Test EquiPment |
| V-RTIF | Vandenberg Real Time Interface |
| V/A | Video/Analog |
| V/C | Vector Control |
| V/C | Velocity Counter |
| V/H | VelocitY-to-Height |
| V/M | Velocity Meter |
| V/V | Validation And Verification (also V&V) |
| V/V | Vent Valve |
| VA | Velocity At Apogee |
| VA | Vibro-Acoustic Test |
| VA | Volt Ampere |
| VA/T/VTA | Vibro-Acoustic/Thermal/Vacuum Test Article |
| VAA | Vehicle Assembly Area |
| VAA | Viewpoint Adapter Assembly |
| VAB | Vehicle Assembly Building |
| VAB | Vehicle Assembly Building |
| VAC | Volts |
| VAC | Vacuum |
| VAC | Vehicle Assembly And Checkout |
| VAD | Vandenberg Addendum Document |
| VAFB | Vandenberg Air Force Base |
| VAFB | Vandenberg Air Force Base |
| VAK | Vertical Access Kit |
| VAK | Vertical Assembly Kit |
| VAL | Valid |
| VALID | Validation |
| VAN | USNS Vanguard (STDN) |
| VAP | Vapor |
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