NKVDDefinition of NKVD the secret police agency in the former Soviet Union which absorbed the functions of the former OGPU in 1934. It merged with the MVD in 1946. Origin:abbreviation of Russian Narodnyĭ komissariat vnutrennikh del 'People's Commissariat of Internal Affairs'NKVD in other Oxford dictionaries Definition of NKVD in the US English dictionary
