voluntary organization; volunteer group
Refers to a group formed by people who share a common purpose or interest, operating without external compulsion. Often used for non-profit, civic, or community-based organizations.
A local volunteer group carried out a cleanup activity.
ボランティア団体 emphasizes volunteer work and charitable activities, while 有志団体 focuses on the voluntary, self-motivated nature of the group, which may not necessarily be charity-oriented.
Compound of 有志 (volunteer, interested person) and 団体 (organization, group).