/ Dictionary / Index R road roller: Meaning and Definition of Find definitions for: road' roll"er Pronunciation: [key] a person who rolls roads. any machine for rolling road materials flat. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Roadrailer roadrunner Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language