artillery vs armament

artillery and armament both are nouns.

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

As nouns, armament is a hypernym of artillery; that is, armament is a word with a broader meaning than artillery:

artillery (noun)	armament (noun)
large but transportable armament	the act of equipping with weapons in preparation for war
a means of persuading or arguing	weaponry used by military or naval force
an army unit that uses big guns