Definitions of pilot:

• noun:   someone who is licensed to operate an aircraft in flight
• noun:   a person qualified to guide ships through difficult waters going into or out of a harbor
• noun:   small auxiliary gas burner that provides a flame to ignite a larger gas burner
• noun:   an original model on which something is patterned
• noun:   a program exemplifying a contemplated series; intended to attract sponsors
• noun:   an inclined metal frame at the front of a locomotive to clear the track
• verb:   act as the navigator in a car, plane, or vessel and plan, direct, plot the path and position of the conveyance
• verb:   fly a plane
• name:  A surname (very rare: popularity rank in the U.S.: #19000)