noun dae·mon

variant spelling of

  1. 1a :  an evil spirit <angels and demons>b :  a source or agent of evil, harm, distress, or ruin <the demons of drug and alcohol addiction> <confronting the demons of his childhood>

  2. 2 usually daemon :  an attendant (see 2attendant 1) power or spirit :  genius

  3. 3 usually daemon mythology :  a supernatural being intermediate between gods and men

  4. 4 :  one that has exceptional enthusiasm, drive, or effectiveness <a demon for work> <Doug, putting like a demon, had birdies on the third and sixth … — Fred Tupper>

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