finishing vs closing

finishing and closing both are nouns.

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

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

Other hypernyms of finishing include completion, culmination, mop up, windup.

finishing (noun)	closing (noun)
the act of finishing	termination of operations
a decorative texture or appearance of a surface (or the substance that gives it that appearance)	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

finishing (adjective)	closing (adjective)
	final or ending