Magnate

n. one who has great influence or wealth (especially in the business world)

For a wealthy or powerful business baron, executive, see business magnate. Magnate, from the Late Latin magnas, a great man, itself from Latin magnus 'great', designates a noble or other man in a high social position, by birth, wealth or other qualities. In reference to the Middle Ages, the term is often used to distinguish higher territorial landowners and warlords such as counts, earls, dukes and territorial-princes, from the baronage.
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Noun
1. a very wealthy or powerful businessman; "an oil baron"
(synonym) baron, big businessman, business leader, king, mogul, power, top executive, tycoon
(hypernym) businessman, man of affairs
(hyponym) oil tycoon

n. magnate, tycoon

n. magnate, one who has great influence or wealth (especially in the business world)