/ Dictionary / Index M mass merchandiser: Meaning and Definition of Find definitions for: mass' mer'chandiser Pronunciation: [key] a retailer or retail store that seeks to sell large quantities of goods quickly through such means as discounting, customer self-service, or unadorned display and packaging, as in a warehouse. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mass meeting mass movement Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language