unfo - vapi
- unionist
- unionization
- unionize
- unionized
- uniparental
- uniparentally
- unipolar
- unique
- uniquely
- uniqueness
- unisex
- unisexual
- unisexuality
- unison
- unit
- unit cell
- unit character
- unit circle
- unit membrane
- unit rule
- unit train
- unit trust
- unitage
- unitard
- unitarian
- unitarianism
- unitarily
- unitary
- unite
- united
- United Arab Emirates
- United Arab Republic
- United Kingdom
- United Kingdom of Great Britain and Ireland
- United Kingdom of Great Britain and Northern Ireland
- United Nations
- United Nations Day
- United Provinces
- United Provinces of Agra and Oudh
- United States