Homonym: cue (Signal)
A "cue" is a signal or prompt that helps someone know when to take action or respond. Cues can be verbal, like a specific word or phrase, or non-verbal, such as a gesture or facial expression. They are often used in various contexts, including theater, where actors rely on cues to know when to deliver their lines or perform actions.
In everyday life, cues can also be found in communication. For example, a nod from a friend might cue you to continue speaking, while a raised hand in a classroom can cue students to stop talking. Cues play a crucial role in facilitating understanding and interaction among people.