black out meaning and definition

BLACK OUT verb

Definition of black out (verb)

1. obliterate or extinguish
   • "Some life-forms were obliterated by the radiation, others survived"
2. darken completely
   • "The dining room blackened out"
   • synonyms: blacken out
3. suppress by censorship as for political reasons
   • "parts of the newspaper article were blacked out"
4. lose consciousness due to a sudden trauma, for example
   • synonyms: pass out, zonk out