Definition of pilot noun from the Oxford Advanced Learner's Dictionary

  1. 1   a person who operates the controls of an aircraft, especially as a job an airline pilot a fighter pilot The accident was caused by pilot error. see also automatic pilot, autopilot, co-pilot, test pilot Wordfinderaircraft, bomber, drone, fighter, helicopter, jet, jump jet, parachute, pilot, warplane See related entries: People in air travel, Professions
  2. 2a person with special knowledge of a difficult area of water, for example, the entrance to a harbour, whose job is to guide ships through it See related entries: People in sea travel, Travelling by boat or ship
  3. 3a single television programme that is made in order to find out whether people will like it and want to watch further programmes See related entries: TV shows
  4. 4= pilot light
  5. Word Originearly 16th cent. (denoting a person who steers a ship): from French pilote, from medieval Latin pilotus, an alteration of pedota, based on Greek pēdon ‘oar’, (plural) ‘rudder’.Extra examples The air crash is thought to have been caused by pilot error. The aircraft was set on automatic pilot. The pilot bailed out as the aircraft crashed into the ocean.
See the Oxford Advanced American Dictionary entry: pilot