body armour vs armour

body armour and armour both are nouns.

Word	Noun	Adjective	Verb	Adverb
body armour	Yes	No	No	No
armour	Yes	No	Yes	No

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

Other hypernyms of body armour include armor.

body armour (noun)	armour (noun)
armor that protects the wearer's whole body	tough more-or-less rigid protective covering of an animal or plant
	protective covering made of metal and used in combat
	a military unit consisting of armored fighting vehicles

body armour (verb)	armour (verb)
	equip with armor