vanish vs dematerialise

vanish and dematerialise both are verbs.

Word	Noun	Adjective	Verb	Adverb
vanish	No	No	Yes	No
dematerialise	No	No	Yes	No

As verbs, dematerialise is a hyponym of vanish; that is, dematerialise is a word with a more specific, narrower meaning than vanish:

Other hyponyms of vanish include dematerialize, clear, bob under.

vanish (verb)	dematerialise (verb)
get lost, as without warning or explanation	become immaterial; disappear
decrease rapidly and disappear
cease to exist
pass away rapidly
become invisible or unnoticeable