armour plate vs gorget

armour plate and gorget both are nouns.

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

As nouns, gorget is a hyponym of armour plate; that is, gorget is a word with a more specific, narrower meaning than armour plate:

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

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