The term 'BILLIARD STICKS' is often used to refer to the equipment used to play the game of billiards. The most common type of billiard stick is known as a cue, which is a four-letter word that can be used to solve the crossword puzzle. Cues are typically made of wood and have a long, slender shaft with a leather tip at one end. They are used to strike the cue ball in order to pocket other balls on the table.