n. 1. A small peg with a concave top for holding a golf ball for an initial drive.
2. The designated area of each golf hole from which a player makes the first stroke.
3. A device used to stand a football on end for a kickoff.
4. A shaft with a concave top attached to a flat base, used to hold the ball in T-ball.
tee off1. To drive a golf ball from the tee.
2. Slang To start or begin: They teed off the fundraising campaign with a dinner.
3. Slang To make angry or disgusted: The impertinent remarks teed the speaker off.