illusion

/i'lu:ʤn/
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illusion

A magician creates the illusion of a floating ball.

Definition
  1. Noun:
    • An erroneous mental representation; a false or misleading perception of reality: An "illusion" is something that deceives the mind or senses by appearing to be real or true when it is not.
    • A deceptive appearance or impression: An "illusion" can be a false idea or belief, often one that is widely held but incorrect.
    • A thing that is or is likely to be wrongly perceived or interpreted by the senses: This refers specifically to sensory tricks, like optical illusions.
Usage
  • The word "illusion" is used to describe perceptions, beliefs, or appearances that are not in accordance with the truth or reality.
  • It is commonly used in psychology, philosophy, art, and everyday language to discuss deception, whether of the senses or the mind.
  • It often appears in phrases like "under the illusion," "create the illusion," or "optical illusion."
Examples
  • As a false perception:
    • The magician created the illusion that the woman had been sawn in half.
    • The mirage in the desert is a classic optical illusion.
  • As a false belief or idea:
    • He is under the illusion that success comes without hard work.
    • They had no illusions about the difficulty of the task ahead.
Advanced Usage
  • "To be under the illusion (that)...": To believe something that is not true.
    • She was under the illusion that her job was secure.
  • "To have no illusions about something": To be fully aware of the true, often unpleasant, nature of something.
    • I have no illusions about how challenging this project will be.
  • "To create/give the illusion of...": To make something appear to be true or real when it is not.
    • The mirrors created the illusion of a much larger room.
Variants and Related Words
  • Illusory (adj): Based on or having the nature of an illusion; deceptive.
    • The promise of quick wealth proved to be illusory.
  • Illusionist (n): A magician or conjurer, especially one who performs sleight of hand.
    • The famous illusionist made an elephant disappear on stage.
Synonyms
  • Delusion: A fixed false belief, often a symptom of mental disorder.
  • Mirage: An optical illusion caused by atmospheric conditions.
  • Fantasy: The faculty or activity of imagining impossible or improbable things.
  • Deception: The act of deceiving someone.
Antonyms
  • Reality: The state of things as they actually exist.
  • Truth: That which is true or in accordance with fact or reality.
  • Certainty: Firm conviction that something is the case.
Related Idioms and Phrases
  • A trick of the light: An optical illusion caused by the way light falls.
    • The movement was just a trick of the light, not a ghost.
  • Smoke and mirrors: The use of deceptive or misleading information or activities.
    • His financial plan was all smoke and mirrors.
illusion

A magician creates the illusion of a floating ball.

Noun
  1. an illusory feat; considered magical by naive observers
  2. the act of deluding; deception by creating illusory ideas
  3. something many people believe that is false
    • they have the illusion that I am very wealthy
  4. an erroneous mental representation

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