blackout meaning and definition

BLACKOUT noun

Definition of blackout (noun)

1. a suspension of radio or tv broadcasting
2. darkness resulting from the extinction of lights (as in a city invisible to enemy aircraft)
   • synonyms: brownout, dimout
3. the failure of electric power for a general region
4. a momentary loss of consciousness
5. partial or total loss of memory
   • "he has a total blackout for events of the evening"
   • synonyms: amnesia, memory loss