Criminal syndicalism, also known as revolutionary unionism, refers to a form of unionism that emphasizes direct action and revolutionary tactics to overthrow capitalism and establish a socialist state. Synonyms for criminal syndicalism include anarcho-syndicalism, which emphasizes the abolition of the state and capitalism through the direct action of the working class; revolutionary unionism, which emphasizes the use of strikes and other tactics to achieve social and economic change; and radical unionism, which advocates militant tactics such as sabotage and industrial action to achieve progressive goals. Other related terms include militant unionism, direct action, and class struggle, all of which emphasize the role of worker empowerment and collective action in achieving social justice.