(ky) noun
1. A long, tapering rod, used in billiards, pool, etc., to strike the cue ball.
2. A queue of hair.
3. A queue or line of persons.
—v.t. cued, cu·ing
1. To twist, braid, or tie into a cue: to cue the hair.
2. In billiards, etc., to hit with a cue. [<F queue tail]

(ky) noun
1. The closing words in an actor's speech, serving as a signal for his successor; hence, a catchword; hint; suggestion.
2. A part to be performed by an actor.
3. State of mind; humor.
—v.t. cued, cu·ing To call a cue to (an actor); prompt. [Earlier Q, qu, said to have been an abbreviation of L quando when, written in actors' copies of plays to mark their entrances.]

(ky) noun
The letter Q.