nosepiece vs plate armor

nosepiece and plate armor both are nouns.

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

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

nosepiece: armor plate that protects the nose
plate armor: specially hardened steel plate used to protect fortifications or vehicles from enemy fire

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

nosepiece (noun)	plate armor (noun)
the link between two lenses; rests on the nose	specially hardened steel plate used to protect fortifications or vehicles from enemy fire
armor plate that protects the nose	a historical type of personal armor made from iron or steel plates, which superseded mail during the 14th century.
a strap that is the part of a bridle that goes over the animal's nose