Meaning of folie à deux | Babel Free

Definitions

1. A situation in which two people behave abnormally together in a way that neither of them would on their own.
2. A rare syndrome in which a symptom of psychosis (particularly a paranoid or delusional belief) is transmitted from one person to another.

Examples

“And so it came to pass. Ann’s psychiatrist at the time came to believe that the pair were psychotic, and diagnosed Ann with folie à deux, a disorder where two people reinforce each other’s mental illness until it reaches extreme proportions.”

CEFR level