multimillionaire

千萬富翁、大富豪、億萬富翁

He became a multimillionaire after selling his software company.

他賣掉自己的軟體公司後成了千萬富翁。

身價千萬的、富豪的

The multimillionaire businessman donated the entire building to the school.

這位身價千萬的商人把整棟大樓捐給學校。