Someone who rules by virtue of his or her wealth.(noun)
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Use "plutocrat" in a sentence
"Every movement of a United States plutocrat is recorded in the leading papers; every detail of his daughter's courtship and of her quarrels with her lover is described."
"And when, later on, Leverett Whyland became less the "good citizen" and more the "plutocrat" -- a course perhaps inevitable under certain circumstances -- he would sometimes smile over those unsuccessful advances and would ask himself to what extent the discouraging unfaith of our Abner might be responsible for his choice and his fall."
"One witty Occuprint poster depicts greed as a statue of the Monopoly game's iconic plutocrat, which is being toppled by a crowd the way monuments to Stalin and Saddam Hussein came down in recent memory."