/ Dictionary / Index A advance guard: Meaning and Definition of Find definitions for: advance' guard' Pronunciation: [key] a body of troops going before the main force to clear the way, guard against surprise, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. advance fee advance man 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