bank closing vs shutdown

bank closing and shutdown both are nouns.

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

As nouns, shutdown is a hypernym of bank closing; that is, shutdown is a word with a broader meaning than bank closing:

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

Other hypernyms of bank closing include closedown, closing, closure.

bank closing (noun)	shutdown (noun)
act of closing down a bank because of a fiscal emergency or failure	termination of operations