hole vs kettle of fish

hole and kettle of fish both are nouns.

Word	Noun	Adjective	Verb	Adverb
hole	Yes	No	Yes	No
kettle of fish	Yes	No	No	No

As nouns, hole and kettle of fish are synonyms defined as:

Other synonyms of hole include fix, jam, mess, muddle, pickle.

hole (noun)	kettle of fish (noun)
an opening deliberately made in or through something	informal terms for a difficult situation
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)	kettle of fish (verb)
make holes in
hit the ball into the hole