/ Dictionary / Index K K.C.S.I.: Meaning and Definition of Find definitions for: K.C.S.I. Pronunciation: [key] Knight Commander of the Order of the Star of India. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Kčs. K.C.V.O. 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