- to chop off one's head
- to win a lottery
- to turn green
- thin_skinned
- top onion
- trenail
- treenail
- trunnel
- third power
- top billing
- transducing vector
- transdiaphragmatic pulmonary abscess
- Tesla coil
- transformed
- transmitting
- transpontine
- transpleural approach
- tightfitting
- tightly fitting
- tight fitting
- tight_fitting
- tamus
- tone arm
- thromboendarterectomy
- thrombosed haemorrhoid
- thrombotest
- tell off
- tampering
- toil and labour
- to weave
- to bring (somebody) to one's side
- testing
- timetable
- tall order
- to follow (something) resolutely
- to trace
- to leave off
- to let go
- to observe a (fast)
- to obey one's order
- to abnegate
- to foul one's own nest
- to be lagging behind
- to be outstripped
- to leave behind
- to outstrip
- to be inferior
- trickle charger
- tertiary amine
- tertiary chorionic villi