- Triangulate
- Triangulation
- Tribalism
- Trice
- Trick
- Trickery
- Trickle down
- Tricuspid bone
- Tried
- Triennial
- Trifle
- Trifurcation
- Triglicides
- Trilingual
- Trill
- Trimester
- Trimming
- Trimonthly
- Trio
- Trip up
- Truistic
- Tripartite
- Tripe
- Triplet
- Triptych
- Trisect
- Trisection
- Triskaidekaphobia
- Triumph
- Trivet
- Trivial word
- Trivially
- Trochee
- Troglodyte
- Troika
- Trojan
- Trolley
- Trolley bus
- Trophic level
- Trophis aspera
- Tropic
- Trot
- Trouble shoot
- Trouble-monger
- Troubles
- Troubleshooter
- Troubling
- Troupe
- Trouper
- Trouser suit
- Trousers
- Truancy
- Truant
- Truchman
- Truck
- Truckload
- True to
- True to life
- True to ones salt
- Truncation
- Trunk call
- Tutelary
- Trust fund
- Trustee
- Trustfully
- Trusty
- Truthfulness
- Try ones luck
- Ttl
- Tube-well
- Tubular organ of the body
- Tuck into
- Tuff of cotton
- Tuft
- Tuft-hunter
- Tug
- Tulip-tree
- Tulu nayar
- Tumble-drier
- Tuneful
- Tungsten
- Tunnel vision
- Tunnel-maker
- Tupil tree
- Turban
- Turbidity
- Turbine
- Turbulent
- Turf
- Turkish sword
- Turmoil
- Turn a deaf ear
- Turn back
- Turn ones mind
- Turn something to account
- Turn up
- Turned towards
- Turner
- Turners wheel
- Turning down