group leader; head of a delegation
Refers to the person who leads a group, delegation, troupe, or team. Often used for official delegations, sports teams, or performance groups.
彼は代表団の団長に選ばれた。
He was chosen as the leader of the delegation.
サーカスの団長がテントの前で挨拶した。
The circus ringmaster greeted the audience in front of the tent.
He served as the delegation's leader on this expedition.
She was chosen as the leader of the choir.
As the leader, he has the responsibility to keep everyone unified.