weapon vs munition

weapon and munition both are nouns.

Word	Noun	Adjective	Verb	Adverb
weapon	Yes	No	No	No
munition	Yes	No	Yes	No

weapon (noun)	munition (noun)
any instrument or instrumentality used in fighting or hunting	weapons considered collectively
a means of persuading or arguing	defensive structure consisting of walls or mounds built around a stronghold to strengthen it
	military supplies

weapon (verb)	munition (verb)
	supply with weapons