/ Dictionary / Index D disillusionize: Meaning and Definition of Find definitions for: dis•il•lu•sion•ize Pronunciation: (dis"i-l'zhu-nīz"), [key] — -ized, -iz•ing. to disillusion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. disillusion disimpassioned Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language