/ Dictionary / Index K ketchup: Meaning and Definition of Find definitions for: ketch•up Pronunciation: (kech'up, kach'-), [key] — n. a condiment consisting of puréed tomatoes, onions, vinegar, sugar, spices, etc. any of various other condiments or sauces for meat, fish, etc.: mushroom ketchup; walnut ketchup. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ketchup (Thesaurus) ketch-rigged ketene Related Content Daily Word Quiz: philanthropy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language