Definition of demon noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈdiːmən//
    ; NAmE NAmE//ˈdiːmən//
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  1. 1an evil spirit demons torturing the sinners in Hell
  2. 2(informal) a person who does something very well or with a lot of energy He skis like a demon. He’s a demon: he gets up early, he works out, he goes home early, he studies, he works out again…
  3. 3something that causes a person to worry and makes them unhappy the demons of jealousy
  4. Word OriginMiddle English: from medieval Latin, from Latin daemon, from Greek daimōn ‘deity, genius’; in sense (1) also from Latin daemonium ‘lesser or evil spirit’, from Greek daemonion, diminutive of daimōn.Extra examples He is plagued by demons which go back to his traumatic childhood. She’s had to battle her personal demons throughout her adult life. The people believed the girl was possessed by demons. an ancient ritual to exorcise demons tales of travellers attacked by evil demonsIdioms (British English, humorous) alcoholic drink
See the Oxford Advanced American Dictionary entry: demon