The word "cue" refers to a signal or prompt that guides a person's actions or behavior. It can be a physical gesture, a verbal instruction, or an event that indicates to someone when or how to do something. Cues are often used in performance arts, communication, and everyday interactions to help convey meanings or facilitate responses.
The word "cue" originates from the early 19th century, derived from the theatrical term "cue," which was borrowed from the Latin word "cauda," meaning "tail." In the theater, a "cue" refers to the last words or actions of one character that signal another character to speak or act.