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

1. Darken completely
   "The dining room blacked out";
   - blacken out
    
2. Suppress by censorship as for political reasons
   "parts of the newspaper article were blacked out"
    
3. Lose consciousness due to a sudden trauma, for example
   - zonk out [informal], pass out, zonk [informal]

Derived forms: blacking out, blacked out, blacks out, blackouts

Type of: break, change state, cognitive state, dark, darken, darkness, edit, intermission, interruption, pause, power failure, power outage, redact, state of mind, suspension, turn, unconsciousness

Encyclopedia: Blackout