air hole vs hole

air hole and hole both are nouns.

Word	Noun	Adjective	Verb	Adverb
air hole	Yes	No	No	No
hole	Yes	No	Yes	No

As nouns, hole is a hypernym of air hole; that is, hole is a word with a broader meaning than air hole:

air hole (noun)	hole (noun)
a hole that allows the passage of air	an opening deliberately made in or through something
a local region of low pressure or descending air that causes a plane to lose height suddenly	one playing period (from tee to green) on a golf course
	informal terms for the mouth
	an opening into or through something
	a depression hollowed out of solid matter
	an unoccupied space
	informal terms for a difficult situation
	a fault

air hole (verb)	hole (verb)
	make holes in
	hit the ball into the hole