arming vs equipping

arming and equipping both are nouns.

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

As nouns, arming and equipping are synonyms defined as:

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

Other synonyms of arming include armament.

arming (noun)	equipping (noun)
the act of equipping with weapons in preparation for war	the act of equipping with weapons in preparation for war