Webster’s Revised Unabridged Dictionary · 1913
Tee
Tee (tē), n. [Cf. Icel. tjā to show, mark.] (a) The mark aimed at in curling and in quoits. (b) The nodule of earth from which the ball is struck in golf.
Tee, n. A short piece of pipe having a lateral outlet, used to connect a line of pipe with a pipe at a right angle with the line; — so called because it resembles the letter T in shape.