misuse vs abuse

misuse and abuse both are nouns.

Word	Noun	Adjective	Verb	Adverb
misuse	Yes	No	Yes	No
abuse	Yes	No	Yes	No

As nouns, misuse and abuse are synonyms defined as:

As verbs, misuse and abuse are synonyms defined as:

Other synonyms of misuse include pervert.

misuse (noun)	abuse (noun)
improper or excessive use	improper or excessive use
	cruel or inhumane treatment
	a rude expression intended to offend or hurt

misuse (verb)	abuse (verb)
change the inherent purpose or function of something	change the inherent purpose or function of something
apply to a wrong thing or person; apply badly or incorrectly	use wrongly or improperly or excessively
	use foul or abusive language towards
	treat badly