pardoner vs excuser

pardoner and excuser both are nouns.

Word	Noun	Adjective	Verb	Adverb
pardoner	Yes	No	No	No
excuser	Yes	No	No	No

As nouns, pardoner and excuser are synonyms defined as:

pardoner and excuser: a person who pardons or forgives or excuses a fault or offense

Other synonyms of pardoner include forgiver.

pardoner (noun)	excuser (noun)
a medieval cleric who raised money for the church by selling papal indulgences	a person who pardons or forgives or excuses a fault or offense
a person who pardons or forgives or excuses a fault or offense