/ Dictionary / Index R rear sight: Meaning and Definition of Find definitions for: rear' sight' Pronunciation: [key] the sight nearest the breech of a firearm. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rear projection rearview mirror Related Content Daily Word Quiz: morose Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language