From Longman Dictionary of Contemporary Englishdethronede‧throne /dɪˈθrəʊn $ -ˈθroʊn/ verb [transitive] 1 PGto remove a king or queen from power2 IMPORTANT#to remove someone from a position of authority or importance an attempt to dethrone the senator He dethroned Tyson in a fight that shook the boxing world. —dethronement noun [uncountable]→ See Verb table
Examples from the Corpus
dethrone• As plato realized, it is dangerous because its effect is to dethrone the Idea from its position of Truth.• The media regarded Gorbachev as the odds-on favorite to dethrone the old champ.• The reality principle does not dethrone the pleasure principle, but rather safeguards it.• Democrats picked an unlikely candidate to try to dethrone the Republican senator.• Douglas dethroned Tyson in a fight that rocked the boxing world.