A cue is a designated signal that prompts an operator, presenter, or automated system to execute the next step in a sequence. In broadcasting and production, it can be a physical gesture, a verbal phrase, or an embedded electronic tone. Missing a cue results in dead air, clipped audio, or unsynchronized transitions.
Heard on the job
Stand by on camera two, wait for the audio cue, and bring up the lower third when he stops speaking.