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hallucination

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hallucination/həˌluːsəˈneɪʃən/noun
pluralhallucinations
hallucination
/həˌluːsəˈneɪʃən/
noun
pluralhallucinations
Learner's definition of HALLUCINATION  
[count]
: something (such as an image, a sound, or a smell) that seems real but does not really exist and that is usually caused by mental illness or the effect of a drug

— hallucinatory

/həˈluːsənəˌtori/British/həˈluːsənətri/adjective
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