calumny vs slander

calumny and slander both are nouns.

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

As nouns, calumny and slander are synonyms defined as:

calumny and slander: an abusive attack on a person's character or good name

Other synonyms of calumny include aspersion, defamation, denigration.

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

calumny: a false accusation of an offense or a malicious misrepresentation of someone's words or actions
slander: words falsely spoken that damage the reputation of another

calumny (noun)	slander (noun)
an abusive attack on a person's character or good name	an abusive attack on a person's character or good name
a false accusation of an offense or a malicious misrepresentation of someone's words or actions	words falsely spoken that damage the reputation of another

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