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Definitions of nightmare
  1. noun
    a situation resembling a terrifying dream

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  2. noun
    a terrifying or deeply upsetting dream
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Definition that contains nightmare
  • tormented tormented or harassed by nightmares or unreasonable fears
  • pavor nocturnus a disorder of sleep characterized by a dream of terrifying dimensions far worse than a typical nightmare; they occur during NREM sleep
  • sleep terror disorder a disorder of sleep characterized by a dream of terrifying dimensions far worse than a typical nightmare; they occur during NREM sleep
  • hag-ridden tormented or harassed by nightmares or unreasonable fears
  • hagridden tormented or harassed by nightmares or unreasonable fears
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