aegis vs armor plate

aegis and armor plate both are nouns.

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

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

aegis: armor plate that protects the chest; the front part of a cuirass
armor plate: specially hardened steel plate used to protect fortifications or vehicles from enemy fire

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

aegis (noun)	armor plate (noun)
kindly endorsement and guidance	specially hardened steel plate used to protect fortifications or vehicles from enemy fire
armor plate that protects the chest; the front part of a cuirass