closing vs peroration

closing and peroration both are nouns.

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

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

Other hyponyms of closing include anticlimax, bathos, epilog, epilogue, epilog, epilogue, coda, finale.

closing (noun)	peroration (noun)
termination of operations	(rhetoric) the concluding section of an oration
the act of closing something	a flowery and highly rhetorical oration
a concluding action
approaching a particular destination; a coming closer; a narrowing of a gap
the last section of a communication

closing (adjective)	peroration (adjective)
final or ending