noun
philanthropist; charitable person; volunteer
Refers to a person who actively engages in charitable or volunteer work, often with a sense of dedication and goodwill.
彼は篤志家として、地域の清掃活動に参加している。
As a volunteer, he participates in local cleanup activities.
その篤志家は多額の寄
The philanthropist made a large donation.
ボランティア is a loanword for 'volunteer' and is more casual; 篤志家 sounds more formal and implies a deeper commitment.
Compound of 篤志 (とくし, 'benevolence, goodwill') and 家 (か, 'person, expert'). The kanji 篤 means 'sincere' or 'fervent', reflecting the dedicated nature of such a person.