aspersion vs defamation

aspersion and defamation both are nouns.

Word	Noun	Adjective	Verb	Adverb
aspersion	Yes	No	No	No
defamation	Yes	No	No	No

As nouns, aspersion and defamation are synonyms defined as:

aspersion and defamation: an abusive attack on a person's character or good name

Other synonyms of aspersion include calumny, denigration, slander.

aspersion (noun)	defamation (noun)
an abusive attack on a person's character or good name	an abusive attack on a person's character or good name
the act of sprinkling water in baptism (rare)	a false accusation of an offense or a malicious misrepresentation of someone's words or actions
a disparaging remark