/ Dictionary / Index F fanaticize: Meaning and Definition of Find definitions for: fa•nat•i•cize Pronunciation: (fu-nat'u-sīz"), [key] — v., -cized, -ciz•ing. —v.t. to make fanatical. —v.i. to act with or show fanaticism. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fanaticism fanback Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language