armourer vs armour

armourer and armour both are nouns.

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

armourer (noun)	armour (noun)
a manufacturer of firearms	tough more-or-less rigid protective covering of an animal or plant
an enlisted man responsible for the upkeep of small arms and machine guns etc.	protective covering made of metal and used in combat
a worker skilled in making armor or arms	a military unit consisting of armored fighting vehicles

armourer (verb)	armour (verb)
	equip with armor