stunt flier vs airplane pilot

stunt flier and airplane pilot both are nouns.

Word	Noun	Adjective	Verb	Adverb
stunt flier	Yes	No	No	No
airplane pilot	Yes	No	No	No

As nouns, airplane pilot is a hypernym of stunt flier; that is, airplane pilot is a word with a broader meaning than stunt flier:

stunt flier: a pilot who travels around the country giving exhibits of stunt flying and parachuting
airplane pilot: someone who is licensed to operate an aircraft in flight

Other hypernyms of stunt flier include pilot.

stunt flier (noun)	airplane pilot (noun)
a pilot who travels around the country giving exhibits of stunt flying and parachuting	someone who is licensed to operate an aircraft in flight