epauliere vs armour plate

epauliere and armour plate both are nouns.

Word	Noun	Adjective	Verb	Adverb
epauliere	Yes	No	No	No
armour plate	Yes	No	No	No

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

epauliere: armor plate that protects the shoulder
armour plate: specially hardened steel plate used to protect fortifications or vehicles from enemy fire

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

epauliere (noun)	armour plate (noun)
armor plate that protects the shoulder	specially hardened steel plate used to protect fortifications or vehicles from enemy fire