1. done without delay; immediate

1. to cause or encourage someone to take action
2. to remind someone of forgotten words, especially in a play or speech

1. a word or phrase that helps someone remember what to say
2. a question or instruction that asks for a response

Examples

• Please send a prompt reply to this email.
• The teacher’s question prompted a lively discussion.
• The actor forgot his lines and needed a prompt from backstage.
• She read the writing prompt carefully before beginning her essay.
• His prompt arrival impressed the interviewer.
• The news prompted many people to donate money.
• The stage manager gave prompts to nervous actors.
• Follow the prompts on the screen to complete the setup.