hole vs bullet hole

hole and bullet hole both are nouns.

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

As nouns, bullet hole is a hyponym of hole; that is, bullet hole is a word with a more specific, narrower meaning than hole:

Other hyponyms of hole include aperture, bolt-hole, cranny, leak, ozone hole, perforation, rathole, knothole, fuckhole.

hole (noun)	bullet hole (noun)
an opening deliberately made in or through something	a hole made by a bullet passing through it
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

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