voider vs chain armour

voider and chain armour both are nouns.

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

As nouns, chain armour is a hypernym of voider; that is, chain armour is a word with a broader meaning than voider:

Other hypernyms of voider include chain armor, chain mail, mail, ring armor, ring armour, ring mail.

voider (noun)	chain armour (noun)
a hamper that holds dirty clothes to be washed or wet clothes to be dried	(Middle Ages) flexible armor made of interlinked metal rings
a piece of chain mail covering a place unprotected by armor plate
an official who can invalidate or nullify
a person who defecates