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very rich person; the super rich
子供の頃、大金持ちになりたいと思っていた。
When I was a child, I dreamed of becoming super rich.
宝くじに当たって、彼は大金持ちになった。
He won the lottery and became incredibly wealthy.
大金持ちの家は大きい。
The homes of the super rich are huge.