invalidator vs voider

invalidator and voider both are nouns.

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

As nouns, invalidator and voider are synonyms defined as:

Other synonyms of invalidator include nullifier.

invalidator (noun)	voider (noun)
an official who can invalidate or nullify	a hamper that holds dirty clothes to be washed or wet clothes to be dried
	a piece of chain mail covering a place unprotected by armor plate
	an official who can invalidate or nullify
	a person who defecates