1A wealthy person who has a lot of money or assets; the casual, blunter equivalent is 金持ち.
彼は事業を成功させて、若くしてお金持ちになった。
He succeeded in business and became wealthy while still young.
お金持ちだからといって、必ずしも幸せとは限らない。
Being rich doesn't necessarily mean being happy.
あの家族はこの町でも有名なお金持ちだ。
That family is well known as one of the wealthy families in this town.