- Telescope
- Telescopist
- Telescopy
- Televise
- Television
- Tell tales
- Tell that to the marines
- Tell time
- Teller
- Telling
- Temporarily
- Temptingness
- ten a penny
- Ten year-old coconut palm
- Tenable
- Tenaciousness
- Tentative
- Tenth
- Tenthly
- Tepee
- Tepefaction
- Tepidly
- Tequila
- Tergiversate
- Terminable
- Terminatively
- Terminatory
- Terseness
- Test pilot
- Test run
- Test-paper
- Test-tube baby
- Testacean
- Testaceous
- Testament
- Testicular
- Testimonial
- Testiness
- Testing
- Testing machine
- Thanksgiving
- That is just it
- That is the limit
- That which cannot be cooked
- Thatch
- Thatching
- Thaumatology
- Thaw
- The cardinal virtues
- The cash nexus
- The common run
- The day of chingam
- The devils tattoo
- The east end
- The fair sex
- The hard right
- The heavens opened
- The high life
- The iron age
- The jet set
- The joker in the pack
- The juice of the grape
- The last straw
- The observed of all observers
- The old
- The other case
- The other side of the coin
- The period of moons decrease
- The pill
- The portion of the body between the shoulder and the ribs
- The signs of the sun and its centres
- The skids
- The sky is the limit
- The son of god
- The sound om
- The strap
- The surrounding country
- The wood-apple tree
- The year dot
- The young
- Theatre
- Theatre-goer
- Thee
- Theft
- Theirs
- Theist
- Themselves
- Then and then itself
- Thence
- Thereat
- Therefore
- Therein
- Thereof
- Thereto
- Thereupon
- Therewith
- Therm
- Thermo current
- Thermocol
- Thimble