ammunition vs munition

ammunition and munition both are nouns.

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

As nouns, munition is a hypernym of ammunition; that is, munition is a word with a broader meaning than ammunition:

Other hypernyms of ammunition include arms, implements of war, weaponry, weapons system.

ammunition (noun)	munition (noun)
projectiles to be fired from a gun	weapons considered collectively
information that can be used to attack or defend a claim or argument or viewpoint	defensive structure consisting of walls or mounds built around a stronghold to strengthen it
any nuclear or chemical or biological material that can be used as a weapon of mass destruction	military supplies

ammunition (verb)	munition (verb)
	supply with weapons