Definition of raison d'être

acrimonious Definition: (adjective) biting, harsh, caustic. Petersons.com

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< Raisin River

raita >

rai·son d'ê·tre    (rzn dtr, r-zô) KEY  

NOUN:
pl. rai·sons d'être   (rzn, r-zô) KEY  

Reason or justification for existing.

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ETYMOLOGY:
French : raison, reason + de, of, for + être, to be

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