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  1. Illusion - Wikipedia

    An illusion is a distortion of the senses, which can reveal how the mind normally organizes and interprets sensory stimulation. Although illusions distort the human perception of reality, they …

  2. Illusion | Definition, Examples, & Facts | Britannica

    illusion, a misrepresentation of a “real” sensory stimulus —that is, an interpretation that contradicts objective “reality” as defined by general agreement. For example, a child who …

  3. ILLUSION Definition & Meaning - Merriam-Webster

    delusion, illusion, hallucination, mirage mean something that is believed to be true or real but that is actually false or unreal. delusion implies an inability to distinguish between what is real and …

  4. Illusion - New World Encyclopedia

    Well-known illusions include the Muller-Lyer illusion, Ebbinghaus illusion, and the Moon illusion. Fictional illusions are defined as the perception of objects that are genuinely not there to all but …

  5. ILLUSION Definition & Meaning | Dictionary.com

    illusion, hallucination, delusion refer to false perceptions or ideas. An illusion is a false mental image produced by misinterpretation of things that actually exist: A mirage is an illusion …

  6. ILLUSION | English meaning - Cambridge Dictionary

    ILLUSION definition: 1. an idea or belief that is not true: 2. something that is not really what it seems to be: 3. an…. Learn more.

  7. ILLUSION definition in American English | Collins English Dictionary

    An illusion is something that appears to exist or be a particular thing but does not actually exist or is in reality something else. Floor-to-ceiling windows can look stunning, giving the illusion of …

  8. illusion - Wiktionary, the free dictionary

    Nov 13, 2025 · Noun illusion (countable and uncountable, plural illusions) (countable) Anything that seems to be something that it is not.

  9. AI can now 'see' optical illusions. What does it tell us about ... - BBC

    2 days ago · Our eyes can frequently play tricks on us, but scientists have discovered that some artificial intelligence can fall for the same illusions.

  10. Illusion - definition of illusion by The Free Dictionary

    Define illusion. illusion synonyms, illusion pronunciation, illusion translation, English dictionary definition of illusion. misinterpretation of things that exist: A mirage is an illusion caused by …