/ Dictionary / Index I instantize: Meaning and Definition of Find definitions for: in•stant•ize Pronunciation: (in'stun-tīz"), [key] — -ized, -iz•ing. to make (foods or other products) available in instant or easily prepared form. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. instantiate instantly Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language