/ Dictionary / Index M monopolist: Meaning and Definition of Find definitions for: mo•nop•o•list Pronunciation: (mu-nop'u-list), [key] — n. a person who has a monopoly. an advocate of monopoly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: monopolist (Thesaurus) monopolism monopolize Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language