/ Dictionary / Index K kappa: Meaning and Definition of Find definitions for: kap•pa Pronunciation: (kap'u), [key] — n. the tenth letter of the Greek alphabet (K, k). the consonant sound represented by this letter. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: kappa (Thesaurus) kapote kapparah* Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language