brigandine vs chain armor

brigandine and chain armor both are nouns.

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

As nouns, chain armor is a hypernym of brigandine; that is, chain 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
chain armor: (Middle Ages) flexible armor made of interlinked metal rings

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

brigandine (noun)	chain 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