demon

/ˈdimən/
noun
  1. An evil spirit or supernatural being, especially one that causes trouble or harm.
    • In the story, a demon haunted the old castle and frightened the villagers.
    • The movie was about a hero who fought a powerful demon to save the world.
    • Many ancient cultures believed that demons could possess people and make them ill.
  2. A person who is very skilled or energetic at something, often in a determined or aggressive way.
    • She is a demon on the tennis court and never gives up a point.
    • My uncle is a demon for work; he stays at the office until midnight every day.
    • That chess player is a demon; he beat everyone in the tournament without losing a game.
  3. A persistent or troubling problem, emotion, or habit.
    • The country struggled with the demon of inflation throughout the 1990s.
    • She finally faced her demon of procrastination and finished the project on time.
    • He has been fighting his inner demons of anxiety and doubt for years.
Antonyms
What does "demon" mean? | whatsthatwordmean | whatsthatwordmean