T is the twentieth (number 20) letter in the English alphabet.

• T- is used as a prefix for an object that is shaped like the capital letter T, such as:
  • T-shirt
  • T-bone
  • T-joint
  • T-intersection
  • T-square
• On calendars, T is most times a short letter for Tuesday or Thursday.
• In science
  • t is most times used as a variable for time.
  • T is most times used as a variable for temperature.
• In logic
  • T is for True, whereas F is for False.
• Mr. T is an American actor.

The dictionary definition of t at Wiktionary
Media related to T at Wikimedia Commons

This short article can be made longer. You can help Wikipedia by adding to it.