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1. Dictionary

   illusion

   /ɪˈl(j)uːʒn/

   noun

   • 1. an instance of a wrong or misinterpreted perception of a sensory experience: "stripes embellish the surface to create the illusion of various wood-grain textures" Similar miragehallucinationapparitionphantasmphantomvisionspectrefantasyfigment of the imaginationwill-o'-the-wisptrick of the lightignis fatuus
   • ▪ a deceptive appearance or impression: "the illusion of family togetherness" Similar appearanceimpressionimitationsemblancepretenceshamfalse appearancedeceptive appearancedeceptionmisperceptionrare:simulacrumOpposite reality
   • ▪ a false idea or belief: "he had no illusions about the trouble she was in" Similar delusionmisapprehensionmisconceptiondeceptionfalse impressionmistaken impressionfantasydreamchimerafool's paradiseself-deceptioncastles in the aircastles in Spainfallacyerrormisjudgementfancy

   Word Origin Middle English (in the sense ‘deceiving, deception’): via Old French from Latin illusio(n-), from illudere ‘to mock’, from in- ‘against’ + ludere ‘play’.

   Derivatives

   • 1. illusional adjective
   • 2. illusionary adjective

   Scrabble Points: 8

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2. People also ask

   What is the difference between illusion and allusion?

   • In this latter sense it is used especially with reference made to something in literature. Illusion has a few more meanings than allusion does, and most of them are concerned with deception and misleading, rather than indirectness.

   'Allusion' vs. 'Illusion': How to Choose | Merriam-Webster

   www.merriam-webster.com/words-at-play/allusion-illusion-delusion

   See all results for this question

   What does illusion mean?

   • Illusion definition: something that deceives by producing a false or misleading impression of reality.. See examples of ILLUSION used in a sentence.

   ILLUSION Definition & Meaning | Dictionary.com

   www.dictionary.com/browse/illusion

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   What is an optical illusion?

   • An illusion is an act of deception. Some optical illusions are pretty cool to watch, but an illusion can also point to an erroneous belief or false perception of reality, which is where you start getting into hallucination territory — seeing things that aren't there.

   Illusion - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com/dictionary/illusion

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   What does delusion mean?

   • 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 what only seems to be real, often as the result of a disordered state of mind.

   Illusion Definition & Meaning - Merriam-Webster

   www.merriam-webster.com/dictionary/illusion

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3. dictionary.cambridge.org › dictionary › englishILLUSION | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

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   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.

4. www.merriam-webster.com › dictionary › illusionIllusion Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › illusion

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   : perception of something objectively existing in such a way as to cause misinterpretation of its actual nature. (2) : hallucination sense 1. (3) : a pattern capable of reversible perspective. 2. a (1) : the state or fact of being intellectually deceived or misled : misapprehension. (2) : an instance of such deception. b.

5. www.vocabulary.com › dictionary › illusionIllusion - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › illusion

   An illusion is an act of deception. Some optical illusions are pretty cool to watch, but an illusion can also point to an erroneous belief or false perception of reality, which is where you start getting into hallucination territory — seeing things that aren't there.

6. Videos

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     5:19

     youtube.com

     How optical illusions trick your brain - Nathan S. Jacobs

     12 Aug 2014

     1.2M views

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     20:40

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     9 Illusions That Explain How Your Brain Constructs Reality

     26 Apr 2022

     385.4K views

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     1:23

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     Understanding Optical Illusions (Literal, Physiological, and Cognitive Illusions)

     14 Dec 2018

     3.2K views

   View all

7. www.dictionary.com › browse › illusionILLUSION Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › illusion

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   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 produced by reflection of light against the sky.

8. www.collinsdictionary.com › english › illusionILLUSION definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › english › illusion

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   Learn the meaning of illusion as a false idea, belief, or appearance that is not in accord with reality. Find synonyms, examples, pronunciation, and word origin of illusion.

9. dictionary.cambridge.org › english › illusionILLUSION | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › english › illusion

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

10. www.oxfordlearnersdictionaries.com › us › definitionillusion noun - Definition, pictures, pronunciation and usage ...

    www.oxfordlearnersdictionaries.com › us › definition

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    Learn the meaning of illusion as a false idea or belief, or something that seems to exist but does not. See how to use illusion in sentences and collocations, and compare with reality and optical illusion.