black out vs change state

black out and change state both are verbs.

Word	Noun	Adjective	Verb	Adverb
black out	No	No	Yes	No
change state	No	No	Yes	No

As verbs, change state is a hypernym of black out; that is, change state is a word with a broader meaning than black out:

Other hypernyms of black out include turn.

black out (verb)	change state (verb)
lose consciousness due to a sudden trauma, for example	undergo a transformation or a change of position or action
suppress by censorship as for political reasons
darken completely