/ Dictionary / Index M money-market fund: Meaning and Definition of Find definitions for: mon'ey-market fund" Pronunciation: [key] a mutual fund that invests in the money market. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. money-market certificate money of account Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language