brigandine vs ring armor

brigandine and ring armor both are nouns.

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

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

brigandine: a medieval coat of chain mail consisting of metal rings sewn onto leather or cloth
ring armor: (Middle Ages) flexible armor made of interlinked metal rings

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

brigandine (noun)	ring armor (noun)
a medieval coat of chain mail consisting of metal rings sewn onto leather or cloth	(Middle Ages) flexible armor made of interlinked metal rings