sentence: Captains are officers in an army.
sentences_after: In a navy, captains command an entire ship. Another type of captain is a commander of a ship who is not in the military. There are also captains in other uniformed organisations, including the police. A leader of a sports team is also called a captain, as well as the pilot of an airliner.
concept_name: captain
headings: Captain
categories: Military ranks Law enforcement occupations Ships