noun
philanthropist; charitable person
Refers to a person who actively donates money, time, or resources to help others, often on a large scale.
彼は有名な慈善家で、多くの病院に寄付をしている。
He is a well-known philanthropist who donates to many hospitals.
篤志家 is a more formal, somewhat literary term for a philanthropist or benefactor, often used in official contexts.
Compound of 慈善 (charity, benevolence) and 家 (person, specialist).