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Déjà entendu: Illusion that what one is hearing has been heard previously.
Déjà vu’: New situation is recognised incorrectly as a repetition of previous experience.
Déjà pense’: condition in which a thought never entertained before is incorrectly regarded as a repetition of a previous thought.
Déjà vecu: In déjà vécu (already experienced), people can’t tell that a situation is new; they believe they are reliving a familiar experience.