Delusion(n.) The act of deluding; deception; a misleading of the mind.
Delusion(n.) The state of being deluded or misled.
Delusion(n.) That which is falsely or delusively believed or propagated; false belief; error in belief.
Delusive(a.) Apt or fitted to delude; tending to mislead the mind; deceptive; beguiling; delusory; as, delusive arts; a delusive dream.

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