/ Dictionary / Index C capsulize: Meaning and Definition of Find definitions for: cap•sul•ize Pronunciation: (kap'su-līz", -syoo-), [key] — -ized, -iz•ing. to summarize or make very concise; capsule. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: capsulize (Thesaurus) capsule capt. Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language