Nouns

(n)cuean actor's line that immediately precedes and serves as a reminder for some action or speech
(n)clue, clew, cueevidence that helps to solve a problem
(n)discriminative stimulus, cuea stimulus that provides information about what to do
(n)cue, cue stick, pool cue, pool sticksports implement consisting of a tapering rod used to strike a cue ball in pool or billiards

Verbs

(v)prompt, remind, cueassist (somebody acting or reciting) by suggesting the next words of something forgotten or imperfectly learned