armament vs equipping

armament and equipping both are nouns.

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

As nouns, armament and equipping are synonyms defined as:

armament and equipping: the act of equipping with weapons in preparation for war

Other synonyms of armament include arming.

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