defame vs slander

defame is not a noun while slander is a noun.

Word	Noun	Adjective	Verb	Adverb
defame	No	No	Yes	No
slander	Yes	No	Yes	No

As verbs, defame and slander are synonyms defined as:

defame and slander: charge falsely or with malicious intent; attack the good name and reputation of someone

Other synonyms of defame include asperse, besmirch, calumniate, denigrate, smear, smirch, sully.

defame (noun)	slander (noun)
	an abusive attack on a person's character or good name
	words falsely spoken that damage the reputation of another

defame (verb)	slander (verb)
charge falsely or with malicious intent; attack the good name and reputation of someone	charge falsely or with malicious intent; attack the good name and reputation of someone