chanfron vs plate armor

chanfron and plate armor both are nouns.

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

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

chanfron: medieval plate armor to protect a horse's head
plate armor: specially hardened steel plate used to protect fortifications or vehicles from enemy fire

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

chanfron (noun)	plate armor (noun)
medieval plate armor to protect a horse's head	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	a historical type of personal armor made from iron or steel plates, which superseded mail during the 14th century.