chain armor vs voider

chain armor and voider both are nouns.

Word	Noun	Adjective	Verb	Adverb
chain armor	Yes	No	No	No
voider	Yes	No	No	No

As nouns, voider is a hyponym of chain armor; that is, voider is a word with a more specific, narrower meaning than chain armor:

Other hyponyms of chain armor include brigandine, habergeon, byrnie, hauberk, gusset.

chain armor (noun)	voider (noun)
(Middle Ages) flexible armor made of interlinked metal rings	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