›a person who refuses to accept the government’s power and uses force to oppose it, or a person who opposes authority and thinks or behaves differently: The government tried to set up talks with the rebels.Though he dressed unusually, he never meant to be a rebel.›US historySoldiers fighting for the southern states in the American Civil War were called rebels.rebel
/rəˈbel/v[I](-ll-)›Children often rebel against being forced to eat certain foods.