A descriptive term for liberal, radical, or revolutionary political views, particularly the view that there are unacceptable social inequalities in the present order of society. Communists and socialists, as well as moderate liberals, come under the term left-wing. Left-wing groups are sometimes known collectively as the Left. (Compare right-wing.)
A descriptive term for an individual or a political faction that advocates liberal, radical, or even revolutionary policies, usually in favor of overcoming social inequalities. In the United States, left-wing groups generally support federal social welfare programs designed to open opportunities to all citizens. (Compare right-wing.)
Note: Although both major political parties in the United States have left-wing factions, left-wing policies are usually associated with the Democratic party.