/ Dictionary / Index R ridered: Meaning and Definition of Find definitions for: rid•ered Pronunciation: (rī'durd), [key] — adj. braced or reinforced with riders, as a snake fence. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rider ridership 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