of means

Prepositional phrase

of a person

(of a person) Possessing significant wealth, especially as suggesting social standing.

Japanese Meaning

裕福で、多大な財産を有し、社会的地位が高い人 / 経済的に恵まれており、その資産が社会的評価に結びついている人

She was of means, so she could donate generously to the museum.

彼女は裕福だったので、美術館に気前よく寄付することができた。

Sense（1）

(of a person) Possessing significant wealth, especially as suggesting social standing.