/ Dictionary / Index P post road: Meaning and Definition of Find definitions for: post' road" Pronunciation: [key] (formerly) a road with stations for furnishing horses for postriders, mail coaches, or travelers. a road or route over which mail is carried. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. postrider postrorse Related Content Daily Word Quiz: reiterate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language