/ Dictionary / Index M mutualize: Meaning and Definition of Find definitions for: mu•tu•al•ize Pronunciation: (my'ch-u-līz"), [key] — v., -ized, -iz•ing. —v.t. to make mutual. to incorporate as a mutual company. —v.i. to become mutual. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mutuality mutually exclusive Related Content Daily Word Quiz: fresco Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language