vertical tail vs aerofoil

vertical tail and aerofoil both are nouns.

Word	Noun	Adjective	Verb	Adverb
vertical tail	Yes	No	No	No
aerofoil	Yes	No	No	No

As nouns, aerofoil is a hypernym of vertical tail; that is, aerofoil is a word with a broader meaning than vertical tail:

vertical tail: the vertical airfoil in the tail assembly of an aircraft
aerofoil: a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight

Other hypernyms of vertical tail include airfoil, control surface, surface.

vertical tail (noun)	aerofoil (noun)
the vertical airfoil in the tail assembly of an aircraft	a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight