The term GOLF BALL PEG is composed of three words, with the first word being TEE, which is a three-letter word. A TEE is a small peg or stand used to support a golf ball when a player is about to hit it. It is usually made of plastic or wood and is placed in the ground on a golf course. The TEE is placed in the ground so that the ball is at the correct height for the player to hit it. The TEE is also used to mark the spot from which the player will hit the ball.