cannon vs artillery

cannon and artillery both are nouns.

Word	Noun	Adjective	Verb	Adverb
cannon	Yes	No	Yes	No
artillery	Yes	No	No	No

As nouns, artillery is a hypernym of cannon; that is, artillery is a word with a broader meaning than cannon:

Other hypernyms of cannon include gun, heavy weapon, ordnance.

cannon (noun)	artillery (noun)
a shot in billiards in which the cue ball contacts one object ball and then the other	large but transportable armament
lower part of the leg extending from the hock to the fetlock in hoofed mammals	a means of persuading or arguing
a large artillery gun that is usually on wheels	an army unit that uses big guns
heavy automatic gun fired from an airplane
(Middle Ages) a cylindrical piece of armor plate to protect the arm
heavy gun fired from a tank

cannon (verb)	artillery (verb)
fire a cannon
make a cannon