/ Dictionary / Index M municipal bond fund: Meaning and Definition of Find definitions for: munic'ipal bond' fund" Pronunciation: [key] a mutual fund that invests in municipal bonds. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. municipal bond municipal corporation Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language