cue stick; cue (billiards/pool)
Refers to the stick used to strike the balls in billiards or pool.
Pick up a billiard cue.
cue (signal); cue (music/theatre)
A signal for an actor, musician, or technician to begin an action. Used in performance and broadcasting contexts.
The stage manager gives the cue.
He struck the white ball with his cue.
The director gave the actor his cue.
She held her cue and waited for the right moment to shoot.
When the music cue came in, the dancers started moving.
As a long, cylindrical stick, a cue is counted with 本, e.g. キュー一本 for one cue stick.
Borrowed from English 'cue'.