illume vs light up

illume and light up both are verbs.

Word	Noun	Adjective	Verb	Adverb
illume	No	No	Yes	No
light up	No	No	Yes	No

As verbs, illume and light up are synonyms defined as:

Other synonyms of illume include illuminate, illumine, light.

illume (verb)	light up (verb)
introduce light into	introduce light into
	begin to smoke
	become clear
	start to burn with a bright flame
	ignite