An extremely wealthy person; a multimillionaire or billionaire.
彼は若くして大富豪になった。
He became a millionaire/billionaire at a young age.
大富豪の寄付で図書館が建てられた。
A library was built thanks to donations from a wealthy benefactor.
その会社の創業者は地域で有名な大富豪だ。
The company's founder is a well-known wealthy person in the region.
The card game 'Daifugō' (also called Daihinmin) — a trick-taking game where players' ranks change based on wins and losses.
放課後に友達と大富豪をして遊んだ。
After school I played Daifugō with my friends.
ルールを変えると、大富豪はさらに盛り上がる。
If you change the rules, Daifugō becomes even more exciting.
大富豪で勝って『大富豪』の席に座った。
I won at Daifugō and sat in the 'Daifugō' (top) seat.