Leninism Syllabification: (Le·nin·ism)Pronunciation: /ˈlenəˌnizəm/Definition of Leninism noun Marxism as interpreted and applied by Lenin. Derivatives Leninist noun & adjective LeninitePronunciation: /-ˌnīt/ noun & adjective Origin: early 20th century: named after Lenin (see Lenin, Vladimir Ilich)Leninism in other Oxford dictionaries Definition of Leninism in the British & World English dictionary