black out

Verb

• lose consciousness due to a sudden trauma, for example

• suppress by censorship as for political reasons
  • parts of the newspaper article were blacked out
    

• darken completely
  • The dining room blackened out
    

• obliterate or extinguish
  • Some life-forms were obliterated by the radiation, others survived
    

Related words

• Synonyms: 
  zonk out , pass out , blacken out