kremlin Syllabification: (krem·lin)Pronunciation: /ˈkremlin/Definition of kremlin noun a citadel within a Russian town. (the Kremlin) the citadel in Moscow. the Russian or (formerly) Soviet government. Origin: mid 17th century: via French from Russian kremlʹ 'citadel'kremlin in other Oxford dictionaries Definition of kremlin in the British & World English dictionary