suit of armour vs armour

suit of armour and armour both are nouns.

Word	Noun	Adjective	Verb	Adverb
suit of armour	Yes	No	No	No
armour	Yes	No	Yes	No

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

Other hypernyms of suit of armour include armor.

suit of 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

suit of armour (verb)	armour (verb)
	equip with armor