Marxism:The political and economic theories of Karl Marx, which form the foundation of Marxism-Leninism. Marxism advocates for a classless, socialist society achieved through the overthrow of capitalism by the working class.
Leninism: The political theory developed by Vladimir Lenin, which emphasizes the role of a disciplined, revolutionary vanguard party in leading the proletariat to overthrow the bourgeois state and establish a socialist society.
Communism:An economic and social system based on the principle of common ownership of the means of production, with the goal of creating a classless, egalitarian society.