/ Dictionary / Index P phantasize: Meaning and Definition of Find definitions for: phan•ta•size Pronunciation: (fan'tu-sīz"), [key] — -sized, -siz•ing. fantasize. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. phanotron phantasm 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