/ Dictionary / Index R roul.: Meaning and Definition of Find definitions for: roul. Pronunciation: [key] — Philately. Philately. roulette. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rough-winged swallow roulade Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language