Cue1  —n. 1 a last words of an actor's speech as a signal to another to enter or speak. B similar signal to a musician etc. 2 a stimulus to perception etc. B signal for action. C hint on appropriate behaviour. 3 cueing audio equipment (see sense 2 of v.). —v. (cues, cued, cueing or cuing) 1 give a cue to. 2 put (audio equipment) in readiness to play a particular section.  cue in 1 insert a cue for. 2 give information to. On cue at the correct moment. [origin unknown]