illustrate vs enlarge

illustrate and enlarge both are verbs.

Word	Noun	Adjective	Verb	Adverb
illustrate	No	No	Yes	No
enlarge	No	No	Yes	No

As verbs, enlarge is a hypernym of illustrate; that is, enlarge is a word with a broader meaning than illustrate:

illustrate: clarify by giving an example of
enlarge: add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing

Other hypernyms of illustrate include dilate, elaborate, expand, expatiate, exposit, expound, flesh out, lucubrate.

illustrate (verb)	enlarge (verb)
clarify by giving an example of	become larger or bigger
depict with an illustration	make large
supply with illustrations	make larger
	add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing