/ Dictionary / Index R roust: Meaning and Definition of Find definitions for: roust Pronunciation: (roust), [key] — v.t. to rout, as from a place: to roust someone out of bed. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Roussel roustabout Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language