Terms:

validate
validation
value engineering
variable safety level
variant
variation
vehicle-borne improvised explosive device
vehicle cargo
vehicle summary and priority table
verification
vertical and/or short takeoff and landing
vertical envelopment
vertical interval
vertical landing zone
vertical probable error
vertical strip
vertical takeoff and landing aircraft
vertical takeoff and landing aircraft transport area
very seriously ill or injured
very small aperture terminal
vetting
visibility range
visual information
visual information documentation
visual meteorological conditions
Voluntary Intermodal Sealift Agreement
voluntary tanker agreement
voluntary training
voluntary training unit
vulnerability
vulnerability assessment
vulnerability program
vulnerability study
vulnerable node