社团 (shè tuán) literally combines 社 (shè), meaning 'community' or 'society', and 团 (tuán), meaning 'group' or 'unit'. Together, they refer to an organized group of people who share a common interest, goal, or activity—such as a photography club, debate association, or volunteer society. Unlike informal friend groups, 社团 usually has a formal structure, membership, and regular activities.

This term is widely used in schools, universities, and community centers across China. University students often join multiple 社团 to explore hobbies, build skills, or meet peers. It’s also common in workplaces for employee-led interest groups. While similar to English 'club' or 'association', 社团 carries a slightly more institutional or civic connotation than casual 'group'—it implies purpose, continuity, and collective identity.