Captain (noun)

1. A person in charge of a ship, aircraft, or other vehicle.
2. A military officer of high rank, typically one in command of a company or troop.
3. A person who leads a team or group, especially in sports.

Origin:

The word "captain" came from the latin word "capitaneus" which meant head, leader or chief. it has been used to describe a person in a position of authority since the 14th century.

Examples:

1. The captain of the ship gave the order to set sail.
2. He was promoted to captain in the army after 20 years of service.
3. The captain of the soccer team scored the winning goal.
4. The captain was responsible for the safety of the passengers on the plane.
5. The captain was recognized for his leadership and bravery in combat.