/ Dictionary / Index K K.C.B.: Meaning and Definition of Find definitions for: K.C.B. Pronunciation: [key] Knight Commander of the Bath. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. kcal kCi Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language