closing vs bank closing

closing and bank closing both are nouns.

Word	Noun	Adjective	Verb	Adverb
closing	Yes	Yes	No	No
bank closing	Yes	No	No	No

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

closing: termination of operations
bank closing: act of closing down a bank because of a fiscal emergency or failure

Other hyponyms of closing include plant closing, layoff.

closing (noun)	bank closing (noun)
termination of operations	act of closing down a bank because of a fiscal emergency or failure
the act of closing something
a concluding action
approaching a particular destination; a coming closer; a narrowing of a gap
the last section of a communication

closing (adjective)	bank closing (adjective)
final or ending