The term 'Captains' refers to individuals who are in charge of a ship, aircraft, or other vehicle. They are responsible for the safety and well-being of the passengers and crew, as well as the navigation and operation of the vessel. Captains are also responsible for ensuring that all regulations and laws are followed. The term 'OVERSEES' is an 8-letter word that accurately describes the role of a Captain, as they are in charge of overseeing the operations of the vessel.