tube - unil
- tubercular
- tubercular, tuberculous
- tuberculous
- tune
- turbid
- turgid
- turgid, turbid
- type
- typescript
- typical
- tyro
- uh-huh
- uh-huh, huh-uh
- umpire
- umpire, referee
- unable
- unabridged
- unabridged, abridged, expurgated
- unapt
- unaware
- unaware, unawares
- unawares
- uncomparable
- unconscious
- unconscious, subconscious
- underlay
- underlay, underlie
- underlie
- undoubtedly
- undoubtedly, indubitably, doubtlessly
- uneatable
- uneatable, inedible
- unequivocal
- unexceptionable
- unexceptional
- unexceptional, unexceptionable
- unfrequent
- unfrequent, infrequent
