cue1
  
  n.
   - a signal to an actor or other performer to enter or to begin their speech or performance. 
▸a signal or prompt for action.
 - Psychology  a feature of something perceived that is used in the brain's interpretation of the perception.
 - a facility for playing through an audio or video recording very rapidly until a desired starting point is reached.
 
v.
 (cues, cueing or cuing, cued)
  - give a cue to or for. 
▸act as a prompt or reminder.
 - set a piece of audio or video equipment in readiness to play (a particular part of a recording).
 
 
  Phrase
  
    
      - on cue
 at the correct moment. 
    
   
  Etymology
  C16: of unknown origin.
 
  
    
cue2
  
  n.
 a long tapering wooden rod for striking the ball in snooker, billiards, etc.
v.
 (cues, cueing or cuing, cued)
 use a cue to strike the ball.
 
  Derivative
  
  Etymology
  C18 (denoting a long plait or pigtail): var. of queue.