1.
group leader; squad leader; team leader
The leader of a small group or squad, used in schools, workplaces, the military, and neighborhood associations. A position of responsibility within a larger organization.
班長を決める。
To choose a group leader.
今月の班長は田中さんです。
This month's group leader is Tanaka-san.
班長として班員の出欠を確認する役割がある。
As group leader, I have the role of checking attendance of the group members.
Common in school settings where students are divided into 班 (groups) for activities like lunch, cleaning, or class projects. The 班長 rotates among group members. Also used in 町内会 (neighborhood associations) where the 班長 handles communication and dues collection. In military contexts, refers to a squad leader. Compare with 組長 (class leader in schools; also gang boss) and 委員長 (committee chairperson).