rai·son d'être noun \ˌrā-ˌzōⁿ-ˈdetrə\
: the thing that is most important to someone or something : the reason for which a person or organization exists
plural rai·sons d'être also rai·sons d'etre \-ˌzōⁿz-\
: reason or justification for existence
Examples of RAISON D'ÊTRE
- Art is his raison d'être.
Origin of RAISON D'ÊTRE
First Known Use: 1864
Rhymes with RAISON D'ÊTRE
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