protest (about/against/at sth) › to show that you disagree with something by standing somewhere, shouting, carrying signs, etc: They're on strike to protest against job losses. Students were protesting about cuts to the education budget.
protest sth US › to show that you disagree with something by standing somewhere, shouting, carrying signs, etc: Thousands gathered to protest the plan.
› [I, T] to say something forcefully or complain about something: [+ that] The girl was crying, protesting that she didn't want to leave her mother.