dematerialise vs go away

dematerialise and go away both are verbs.

Word	Noun	Adjective	Verb	Adverb
dematerialise	No	No	Yes	No
go away	No	No	Yes	No

As verbs, go away is a hypernym of dematerialise; that is, go away is a word with a broader meaning than dematerialise:

Other hypernyms of dematerialise include disappear, vanish.

dematerialise (verb)	go away (verb)
become immaterial; disappear	get lost, as without warning or explanation
	go away from a place
	move away from a place into another direction
	become invisible or unnoticeable