A labour-movement doctrine holding that revolutionary trade unions, using direct action and ultimately the general strike, should take over and run production.
In more detail
It emerged in France around the turn of the 20th century, and the CGT's 1906 Charter of Amiens affirmed union independence from political parties. Similar currents include the IWW in the United States. It differs from bargaining-focused trade unionism and, in its anarcho-syndicalist form, adds a rejection of the state.