cue cue /ˈkjuː/

noun

1. Sports implement consisting of a tapering rod used to strike a cue ball in pool or billiards  ( cue , cue stick , pool cue , pool stick )
   sports implement consisting of a tapering rod used to strike a cue ball in pool or billiards
   
   
2. A stimulus that provides information about what to do  ( cue , discriminative stimulus )
   a stimulus that provides information about what to do
   
3. Evidence that helps to solve a problem  ( clew [Archaic] , cue , clue )
   evidence that helps to solve a problem
   
4. An actor's line that immediately precedes and serves as a reminder for some action or speech  ( cue )
   an actor's line that immediately precedes and serves as a reminder for some action or speech
   

verb

1. Assist (somebody acting or reciting) by suggesting the next words of something forgotten or imperfectly learned  ( cue , prompt , remind )
   assist (somebody acting or reciting) by suggesting the next words of something forgotten or imperfectly learned
     Please remind me to buy milk when we go to the grocery store.
   Please remind me to buy milk when we go to the grocery store.