/ Dictionary / Index R rear echelon: Meaning and Definition of Find definitions for: rear' ech'elon Pronunciation: [key] (in a military operation) the troops, officers, etc., removed from the combat zone and responsible for administration, matériel, etc. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rear deck rear end Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language