noun

delusion

delusion, false belief, misconception

He is under the delusion that he is famous.

He is under the delusion that he is famous.

She suffers from delusions of grandeur.

She suffers from delusions of grandeur.

((that ...)) a delusion that ... He is under the delusion that he is famous.

Synonyms: illusion, hallucination, misconception; Antonyms: reality, fact, truth

From Latin 'deludere' (to deceive), from 'de-' (away) + 'ludere' (to play). Literally, 'to play false'.

Think of 'de-lude' as being 'led' away from reality into a false idea.

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