forgiveness vs pardon

forgiveness and pardon both are nouns.

Word	Noun	Adjective	Verb	Adverb
forgiveness	Yes	No	No	No
pardon	Yes	No	Yes	No

As nouns, forgiveness and pardon are synonyms defined as:

forgiveness (noun)	pardon (noun)
the act of excusing a mistake or offense	the act of excusing a mistake or offense
compassionate feelings that support a willingness to forgive	the formal act of liberating someone
	a warrant granting release from punishment for an offense

forgiveness (verb)	pardon (verb)
	grant a pardon to
	accept an excuse for