A military leader; a warrior.

To act as captain of; to lead.

The master or commanding officer of a merchant vessel.

A person having authority over others acting in concert;
as, the captain of a boat’s crew; the captain of a football team.

One in charge of a portion of a ship’s company; as, a
captain of a top, captain of a gun, etc.

By courtesy, an officer actually commanding a vessel,
although not having the rank of captain.

The military officer who commands a company, troop, or
battery, or who has the rank entitling him to do so though he may be
employed on other service.

A head, or chief officer

An officer in the United States navy, next above a
commander and below a commodore, and ranking with a colonel in the
army.

The foreman of a body of workmen.