/ Dictionary / Index R rapid fire: Meaning and Definition of Find definitions for: rap'id fire' Pronunciation: [key] — Mil. Mil. a rate of firing small arms that is intermediate between slow fire and quick fire. rap•id-fire Pronunciation: (rap'id-fīr'), [key] — adj. characterized by, delivered, or occurring in rapid succession: rapid-fire questions; rapid-fire events. discharging in rapid fire: rapid-fire rifles. discharging, operating, etc., at a rate more rapid than normal: a rapid-fire staple gun. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rapid eye movement sleep rapidity Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language