light up vs erupt

light up and erupt both are verbs.

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

As verbs, erupt is a hypernym of light up; that is, erupt is a word with a broader meaning than light up:

Other hypernyms of light up include catch fire, combust, conflagrate, ignite, take fire.

light up (verb)	erupt (verb)
introduce light into	become active and spew forth lava and rocks
begin to smoke	start abruptly
become clear	erupt or intensify suddenly
start to burn with a bright flame	become raw or open
ignite	break out
	appear on the skin
	force out or release suddenly and often violently something pent up
	start to burn or burst into flames