blackout vs state of mind

blackout and state of mind both are nouns.

Word	Noun	Adjective	Verb	Adverb
blackout	Yes	No	No	No
state of mind	Yes	No	No	No

As nouns, state of mind is a hypernym of blackout; that is, state of mind is a word with a broader meaning than blackout:

Other hypernyms of blackout include cognitive state.

blackout (noun)	state of mind (noun)
a momentary loss of consciousness	the state of a person's cognitive processes
partial or total loss of memory	a temporary psychological state
the failure of electric power for a general region
darkness resulting from the extinction of lights (as in a city invisible to enemy aircraft)
a suspension of radio or tv broadcasting