- Theologian
- Theoretically
- Theorization
- Theorize
- Theory of evolution
- Therapeutic
- Therapeutist
- There are no flies on
- Thermophile
- These
- They are off
- Thiamine
- Thick
- Thick-headed
- Thick-skulled
- Thigh
- Thinness
- Third
- Third degree method
- Third estate
- Thirst
- Thirteenth
- Thirtieth
- Thiruvananthapuram
- Thiruvathirakakli
- This man
- This much
- This time
- Thoughtlessness
- Thousand
- Thousand fold
- Thousand millions
- Thralldom
- Thrash out
- Threadbare
- Thready
- Threatening
- Thunderbolt
- Three rhythms in music
- Three ring circus
- Topcoat
- Three-cornered
- Three-dimensional
- Three-ply
- Threshing corn
- Threshing floor
- Thrice
- Thrift
- Thriftiness
- Thrills and spills
- Thrive
- Thro
- Tie
- Throb
- Thrusting
- Thulam
- Thumbnail
- Thunchathezhuthachan
- Thundering
- Thunderstorm
- Thurification
- Thwarting
- Thymelaea hirsuta
- Tie-up
- Tied
- Tier
- Tiffin
- Tight
- Tightfisted
- Tightly
- Tiles
- Time-honoured
- Time-lag
- Time-zone
- Timeglass
- Timeless
- Timeliness
- Timeout
- Timid person
- Timocracy
- Tin
- Tin pot
- Tin-opener
- Tinct
- Tiptoe
- Tire out
- Tirelessless
- Tiro
- Tirupathy hills
- Tissue-paper
- Tit
- Titanic
- Titillate
- Title deed
- To be aggrieved
- To be agitated
- To be amused
- To be at table
- To seggregate
- To be bruised