de·throne /dɪˈθrəʊn $ -ˈθroʊn/ verb [transitiveT] 2 IMPORTANT#to remove someone from a position of authority or importance 撵〔某人〕下台,使〔某人〕失去重要地位 an attempt to dethrone the senator 把参议员撵下台的企图
He dethroned Tyson in a fight that shook the boxing world. 他在一场震惊拳坛的比赛中把泰森赶下了拳王宝座。
—dethronement noun [uncountableU]