fauld vs plate armor

fauld and plate armor both are nouns.

Word	Noun	Adjective	Verb	Adverb
fauld	Yes	No	No	No
plate armor	Yes	No	No	No

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

fauld: a piece of armor plate below the breastplate
plate armor: specially hardened steel plate used to protect fortifications or vehicles from enemy fire

Other hypernyms of fauld include armor plate, armor plating, armour plate, plate armour.

fauld (noun)	plate armor (noun)
a piece of armor plate below the breastplate	specially hardened steel plate used to protect fortifications or vehicles from enemy fire
	a historical type of personal armor made from iron or steel plates, which superseded mail during the 14th century.