illustrate vs beautify

illustrate and beautify both are verbs.

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

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

Other hypernyms of illustrate include adorn, decorate, embellish, grace, ornament.

illustrate (verb)	beautify (verb)
clarify by giving an example of	make more beautiful
depict with an illustration	make more attractive by adding ornament, colour, etc.
supply with illustrations	be beautiful to look at