The term captain has several meanings, but in its most general sense it refers to a person who commands or leads others. In specific contexts, however, the meaning may vary. For example, in sports such as football or cricket, a captain is an elected team member responsible for leading and coordinating their teammates during games. Similarly, in maritime transportation, a captain is the highest rank of officers who are responsible for navigating and operating the vessel. In military contexts, a captain may refer to either an officer holding that rank or the head of a company-sized unit.