illuminate vs decorate

illuminate and decorate both are verbs.

Word	Noun	Adjective	Verb	Adverb
illuminate	No	No	Yes	No
decorate	No	No	Yes	No

As verbs, decorate is a hypernym of illuminate; that is, decorate is a word with a broader meaning than illuminate:

Other hypernyms of illuminate include adorn, beautify, embellish, grace, ornament.

illuminate (verb)	decorate (verb)
introduce light into	provide with decoration
make free from confusion or ambiguity; make clear	make more attractive by adding ornament, colour, etc.
add embellishments and paintings to (medieval manuscripts)	award a mark of honor, such as a medal, to
	be beautiful to look at