[{"Bold_text": "noun", "List Items": ["a person who commands .", "a person who exercises authority; chief officer; leader.", "the commissioned officer in command a military unit.", "U.S. Navy.an officer ranking below a captain and above a lieutenant commander lieutenant commander.", "a police officer in charge of a precinct or other unit.", "the chief officer of a commandery in the medieval orders of Knights Hospitalers, Knights Templars, and others.", "a member of one of the higher classes or ranks in certain modern fraternal orders, as in the Knights Templars."]}]