/ Dictionary / Index N NKGB: Meaning and Definition of Find definitions for: NKGB Pronunciation: [key] in the U.S.S.R., the government's secret-police organization (1941–46). Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Njord Nkomo Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language