One in authority over others acting in a group.

首领。

The commander of a company.

【军】连长；【美】陆军上尉。

An officer commanding a ship of war.

【军】舰长；海军上校。

The master of a merchant vessel.

【航】船长。

The head of a team or side in an athletic game.

(运动员之)领队；队长。

To act as leader or captain of; lead.

作首领；领袖；统率。