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hallucinate

verb [I]
 
 
/həˈluː.sɪ.neɪt/

Definition

to seem to see, hear, feel, or smell something that does not exist, usually because you are ill or have taken a drug: Mental disorders, drug use and hypnosis can all cause people to hallucinate.Dreaming
(Definition of hallucinate verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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