n. One who is at the head of or has authority over others; a chief; a leader; a commander, especially in military affairs.n. More specificallyn. In the army, the officer who commands a company, whether of infantry, cavalry, or artillery.n. In the navy, an officer next in rank above a commander, and ranking in the United States service with a colonel, and in the British with a lieutenant-colonel, and after three years' service with a colonel, in the army. Officers of this grade in the British service were formerly designated post-captains.n. The commander or master of a merchant vessel.n. In some of the public schools of England, a title given to the senior scholar.n. In base-ball, rowing, etc., the head or leader of the nine, the crew, or the body of players on one side.n. In mining, the head man or superintendent of the mining operations; the person who directs and is responsible for the miners' work. As a title, often abbreviated capt.n. A name commonly given, in the form long-finned captain, to the fish otherwise known as the lanthorn gurnard.[The orig. (ML.) use, but in E. later than the noun use.] Of chief rank, excellence, or value; chief; principal.Of commanding character; fitted to lead.To act as leader to; be captain over; command.n. In archery: The winner of a captaincy at a shooting-match.n. A competitor at a shooting-match or public meeting assigned to a particular target to score for the other archers and to keep order.