Dodgeball is a team sport in which players on two teams try to throw balls and hit opponents, while avoiding being hit themselves. The objective of each team is to eliminate all members of the opposing team by hitting them with thrown balls, catching a ball thrown by an opponent, or inducing an opponent to commit a violation, such as stepping outside the court. The sport is played informally (in schools and pick-up games) under varying rules; and formally as an international sport, under rules that vary among international governing bodies, such as the World Dodgeball Federation (WDBF) and the World Dodgeball Association (WDA). USA Dodgeball is the governing entity for dodgeball in the United States, with member leagues and clubs across the nation.