nullifier vs voider

nullifier and voider both are nouns.

Word	Noun	Adjective	Verb	Adverb
nullifier	Yes	No	No	No
voider	Yes	No	No	No

As nouns, nullifier and voider are synonyms defined as:

Other synonyms of nullifier include invalidator.

nullifier (noun)	voider (noun)
an advocate of nullification; someone who believes that a state can resist federal laws	a hamper that holds dirty clothes to be washed or wet clothes to be dried
an official who can invalidate or nullify	a piece of chain mail covering a place unprotected by armor plate
	an official who can invalidate or nullify
	a person who defecates