Definition of holocaust noun from the Oxford Advanced American Dictionary

     

    holocaust

     noun
    noun
    NAmE//ˈhɑləˌkɔst//
     
    , NAmE//ˈhoʊləˌkɔst//
     
     
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  1. 1[countable] a situation in which many things are destroyed and many people killed, especially because of a war or a fire a nuclear holocaust
  2. 2the Holocaust [singular] the killing of millions of Jews by the Nazis in the 1930s and 1940s
See the Oxford Advanced Learner's Dictionary entry: holocaust