voider vs invalidator

voider and invalidator both are nouns.

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

As nouns, voider and invalidator are synonyms defined as:

Other synonyms of voider include nullifier.

voider (noun)	invalidator (noun)
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