noun

• (uncountable) The tea plant (Camellia sinensis); (countable) a variety of this plant.
  "Darjeeling tea is grown in India."
• (uncountable) The dried leaves or buds of the tea plant; (countable) a variety of such leaves.
  "Go to the supermarket and buy some Darjeeling tea."
• (uncountable) The drink made by infusing these dried leaves or buds in hot water.
  "Would you like some tea?"
• Any drink which is similar to Camellia sinensis tea in some way:
  "Mushroom Tea / 8 cups water / 1 cup dried reishi mushroom pieces [...] 1. Start by making Reishi Mushroom Tea: Bring water to a boil in a medium saucepan. 2. Add the reishi mushroom pieces[…]"

verb

• (intransitive) To drink tea.
  "We tea’d with May, and had to wait over an hour for a taxi!"
• (intransitive) To take afternoon tea (a light meal).
  "The wind was high and the hills ditto, and both being against us we were late in reaching Hitchin (30 from Cambridge), so giving up the idea of reaching Oxford we toiled on through Luton, on to Dunstable (47), where we teaed moderately […]"
• (transitive) To give tea to.
  "And they’ve got Professor Hummums with ’em, the great Everlasting Star of the Nineteenth Century, which he has breakfasted and dined and tea’d and supped here ever since yesterday."

adj

• (slang) Good-looking, sexy.

noun

• (countable, Northern Ireland) Initialism of training and employment agency.
• (uncountable, organic chemistry) Acronym of triethylaluminium.
• (uncountable, organic chemistry) Abbreviation of triethylamine.
• (uncountable, organic chemistry) Abbreviation of triethanolamine.