cannonball vs missile

cannonball and missile both are nouns.

Word	Noun	Adjective	Verb	Adverb
cannonball	Yes	No	No	No
missile	Yes	No	No	No

As nouns, missile is a hypernym of cannonball; that is, missile is a word with a broader meaning than cannonball:

cannonball: a solid projectile that in former times was fired from a cannon
missile: a weapon that is forcibly thrown or projected at a targets but is not self-propelled

Other hypernyms of cannonball include projectile.

cannonball (noun)	missile (noun)
a solid projectile that in former times was fired from a cannon	a weapon that is forcibly thrown or projected at a targets but is not self-propelled
	a rocket carrying a warhead of conventional or nuclear explosives; may be ballistic or directed by remote control