caption vs illustration

caption and illustration both are nouns.

Word	Noun	Adjective	Verb	Adverb
caption	Yes	No	Yes	No
illustration	Yes	No	No	No

caption (noun)	illustration (noun)
brief description accompanying an illustration	a visual representation (a picture or diagram) that is used to make some subject more pleasing or easier to understand
translation of foreign dialogue of a movie or TV program; usually displayed at the bottom of the screen	an item of information that is typical of a class or group
taking exception; especially a quibble based on a captious argument	artwork that helps make something clear or attractive
	showing by example

caption (verb)	illustration (verb)
provide with a caption, as of a photograph or a drawing