American English

Definition of horror noun from the Oxford Advanced American Dictionary

      

    horror

     noun
    noun
    NAmE//ˈhɔrər//
     
    , NAmE//ˈhɑrər//
     
     
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  1. 1[uncountable] a feeling of great shock, fear, or disgust People watched in horror as the plane crashed to the ground. With a look of horror, he asked if the doctor thought he had cancer. The thought of being left alone filled her with horror. She recoiled in horror at the sight of an enormous spider. To his horror, he could feel himself starting to cry (= it upset him very much). Her eyes were wide with horror.
  2. 2[singular] a great fear or hatred of something horror of something a horror of deep water horror of doing something Most people have a horror of speaking in public.
  3. 3[uncountable] the horror of something the very unpleasant nature of something, especially when it is shocking or frightening The full horror of the accident was beginning to become clear. In his dreams he relives the horror of the attack.
  4. 4[countable, usually plural] a very unpleasant or frightening experience the horrors of war
  5. 5 [uncountable] a type of book, movie, etc. that is designed to frighten people In this section you'll find horror and science fiction. a horror movie see also horror story
  6. Idioms
    horror of horrors (humorous or ironic)
     
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    used to emphasize how bad a situation is I stood up to speak and—horror of horrors—realized I had left my notes behind.
See the Oxford Advanced Learner's Dictionary entry: horror