organization, organisation - a group of people who work together

industrial union, vertical union - a labor union that admits all workers in a given industry irrespective of their craft

craft union - a labor union whose membership is restricted to workers in a particular craft

company union - a union of workers for a single company; a union not affiliated with a larger union

labor movement, trade union movement, labor - an organized attempt by workers to improve their status by united action especially via labor unions (especially the leaders of this movement)

I.W.W., Industrial Workers of the World, IWW - a former international labor union and radical labor movement in the United States; founded in Chicago in 1905 and dedicated to the overthrow of capitalism; its membership declined after World War I