paronomasia vs wordplay

paronomasia and wordplay both are nouns.

Word	Noun	Adjective	Verb	Adverb
paronomasia	Yes	No	No	No
wordplay	Yes	No	No	No

As nouns, paronomasia and wordplay are synonyms defined as:

Other synonyms of paronomasia include pun, punning.

paronomasia (noun)	wordplay (noun)
a humorous play on words	a humorous play on words