Definition of prompt:
on time. - (Be prompt for your appointment); quick - (He was very prompt getting a new job)
something that indicates when or where a response is appropriate; a suggestion
given to an author
"I filled in my name where the prompt appeared on the computer screen but my account wasn't recognized."
to lead someone toward what they should say or do - (I prompted him to get a new job); - to show or tell an actor/person the words they should be saying, or actions they should be doing
"if he forgets his words I will prompt him."