/ Dictionary / Index K karat: Meaning and Definition of Find definitions for: kar•at Pronunciation: (kar'ut), [key] — n. a unit for measuring the fineness of gold, pure gold being 24 karats fine. Abbr.: k., kt. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: karat (Thesaurus) Kara Sea karate Related Content Daily Word Quiz: sylvan Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language