Carried out or performed without delay: a prompt reply.
tr.v.
prompt·ed, prompt·ing, prompts
To move to act; spur; incite: A noise prompted the guard to go back and investigate.
To give rise to; inspire: The accident prompted a review of school safety policy.
To assist with a reminder; remind.
To assist (an actor or reciter) by providing the next words of a forgotten passage; cue.
n.
The act of prompting or giving a cue.
A reminder or cue.
A prompt note.
The time limit stipulated in a prompt note.
Computer Science A symbol that appears on a monitor to indicate that the computer is ready to receive input.
Business
A prompt note.
The time limit stipulated in a prompt note.
[Middle English, ready, from Old French, from Latin prōmptus, from past participle of prōmere, to bring forth : prō-, forth; see pro-1 + emere, to take, obtain; see em- in Indo-European roots.] prompt'er n., promp'ti·tude' (prŏmp'tĭ-tōōd', -tyōōd'), prompt'ness (prŏmpt'nĭs) n., prompt'ly adv.
(prŏmpt) 
tɪˌtud