Dethrone is often used when discussing history and the fall of monarchs. Historians frequently investigate how rulers are dethroned during revolutions.
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Power and Authority
Dethrone implies the loss of official power, usually against the ruler's will. Conspirators plotted to dethrone the tyrannical emperor.
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Formal Context
Dethrone is formal and mostly used in serious or official discussions about leadership. The parliament's vote successfully led to dethrone the prime minister.