WordNet sense 1 (someone who is licensed to operate an aircraft in flight):

airplane pilot

WordNet sense 2 (a program exemplifying a contemplated series; intended to attract sponsors):

pilot program, pilot film

WordNet sense 3 (an original model on which something is patterned):

archetype, original

WordNet sense 4 (small auxiliary gas burner that provides a flame to ignite a larger gas burner):

pilot light, pilot burner

WordNet sense 5 (an inclined metal frame at the front of a locomotive to clear the track):

buffer, cowcatcher, fender

WordNet sense 6 (fly a plane):

fly, aviate

WordNet sense 7 (act as the navigator in a car, plane, or vessel and plan, direct, plot the path and position of the conveyance):

navigate