weaponry vs armament

weaponry and armament both are nouns.

Word	Noun	Adjective	Verb	Adverb
weaponry	Yes	No	No	No
armament	Yes	No	No	No

As nouns, armament is a hyponym of weaponry; that is, armament is a word with a more specific, narrower meaning than weaponry:

Other hyponyms of weaponry include ammo, ammunition, bomb, defence system, defense system, gunnery, hardware, naval weaponry.

weaponry (noun)	armament (noun)
weapons considered collectively	the act of equipping with weapons in preparation for war
	weaponry used by military or naval force