/ Dictionary / Index P parenthesize: Meaning and Definition of Find definitions for: pa•ren•the•size Pronunciation: (pu-ren'thu-sīz"), [key] — -sized, -siz•ing. to insert (a word, phrase, etc.) as a parenthesis. to put between marks of parenthesis: to parenthesize the pronunciation of a word. to interlard with parenthetic remarks, as a speech. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. parenthesis parenthetic Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language