- Tool bar
- Toot
- Tooth and nail
- Toothsome
- Top-class
- Top-up
- Toper
- Topi
- Topknot
- Topless
- Topmost
- Toponym
- Topsyturvy
- Torch
- Torch-bearer
- Torch-songs
- Torment
- Torments
- Torpescence
- Torpor
- Torrential
- Tottering
- Toucan
- Touch a raw nerve
- Touch at
- Touch on
- Touch-lightly
- Touch-me-not-ism
- Touched
- Touching
- Touchy
- Tough-guy
- Townspeople
- Toxicology
- Toy with
- Tp
- Tpt
- Tracery
- Tracheal
- Track and field
- Tracker
- Tractability
- Trade traffic
- Tradesman
- Traditional
- Traditionalist
- Traducer
- Trady
- Traffic
- Trafficker
- Tragedian
- Tragedienne
- Tragic flaw
- Tragicomedy
- Trai-net
- Traid
- Transactor
- Transcend
- Transcendence
- Transcendent
- Transcendentalism
- Transcendentalist
- Transducer
- Transept
- Transferable
- Transference
- Transmitter
- Transmute
- Transom
- Transparency
- Transpire
- Transplantation
- Transplendent
- Transportation
- Transported
- Transubstantiation
- Treadmill
- Treasonable
- Treasure
- Treasure hunt
- Treatment
- Trees
- Tribes
- Tribulus
- Tribunal
- Tribute
- Trichiurus
- Trichotillomania
- Tricjster
- Trickle
- Trickle charger
- Tricks of the trade
- Trickster
- Trident
- Trifler
- Trigger something off
- Trigger-happy
- Trigonometry
- Trim with
- Trimmer