amnesty vs free pardon

amnesty and free pardon both are nouns.

Word	Noun	Adjective	Verb	Adverb
amnesty	Yes	No	Yes	No
free pardon	Yes	No	No	No

As nouns, amnesty and free pardon are synonyms defined as:

Other synonyms of amnesty include pardon.

amnesty (noun)	free pardon (noun)
the formal act of liberating someone	the formal act of liberating someone
a warrant granting release from punishment for an offense
a period during which offenders are exempt from punishment

amnesty (verb)	free pardon (verb)
grant a pardon to (a group of people)