gusset vs ring armor

gusset and ring armor both are nouns.

Word	Noun	Adjective	Verb	Adverb
gusset	Yes	No	No	No
ring armor	Yes	No	No	No

As nouns, ring armor is a hypernym of gusset; that is, ring armor is a word with a broader meaning than gusset:

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

gusset (noun)	ring armor (noun)
a piece of material used to strengthen or enlarge a garment	(Middle Ages) flexible armor made of interlinked metal rings
a metal plate used to strengthen a joist
a piece of chain mail covering a place unprotected by armor plate