- typist
- typographical
- typographic
- typographical error
- typographically
- typography
- typology
- tyr
- tyranni
- tyrannic
- tyrannicide
- tyrannidae
- tyrannical
- tyrannus tyrannus
- tyrannous dictator (a usage based on the name of the cruel persian invader who stormed delhi and ordered a general massacre in the year 1738)
- take before
- take it
- take it upon
- take name in vain
- take office
- take onto one side
- take out on
- take pains
- take place
- typhoid
- typhoid fever
- typhoid mary
- typhon
- typhus
- typical jerboa
- tyranny
- tyrant
- time unit
- texas star
- tungsten
- toddle
- totter
- trumpeter
- tidy sum
- tons
- thigh boot
- taylor
- twelvemonth
- talking
- tenner
- tomography
- ten
- tomograph
- thermionic valve
- tube