hole vs rabbit hole

hole and rabbit hole both are nouns.

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

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

hole (noun)	rabbit hole (noun)
an opening deliberately made in or through something	a hole in the ground as a nest made by wild rabbits
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)	rabbit hole (verb)
make holes in
hit the ball into the hole