Captain
Part of speech: verb
Definition: To act as captain To exercise command of a ship, aircraft or sports team.
Part of speech: noun
Definition: A chief or leader. An army officer with a rank between the most senior grade of lieutenant and major. A naval officer with a rank between commander and commodore. A commissioned officer in the United States Navy, Coast Guard, NOAA Corps, or PHS Corps of a grade superior to a commander and junior to a rear admiral (lower half). A captain is equal in grade or rank to an Army, Marine Corps, or Air Force colonel. The person lawfully in command of a vessel. The person lawfully in command of an airliner. One of the athletes on a sports team who designated to make decisions, and is allowed to speak for his team with a referee or official. The leader of a group of workers. A maître d'. An honorific title given to a prominent person. See colonel.
Example sentence: My fate cannot be mastered; it can only be collaborated with and thereby, to some extent, directed. Nor am I the captain of my soul; I am only its noisiest passenger.
Chieftain
Part of speech: noun
Definition: A leader of a clan or tribe.A leader of a group, e.g. a robbers' chieftain.(capitalized) The name of a British military tank.