control surface vs airfoil

control surface and airfoil both are nouns.

Word	Noun	Adjective	Verb	Adverb
control surface	Yes	No	No	No
airfoil	Yes	No	No	No

As nouns, control surface and airfoil are synonyms defined as:

control surface and airfoil: a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight

Other synonyms of control surface include aerofoil, surface.

control surface (noun)	airfoil (noun)
a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight	a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight