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  1. rai·son d'ê·tre
    IPA[ˌrāzôn ˈdetrə]
  2. noun

    • 1. the most important reason or purpose for someone or something's existence:

      an institution whose raison d'être is public service broadcasting
  3. Variation

    • n.: noun: raison d'être, plural noun: raisons d'être

    • noun

      the most important reason or purpose for someone or something's existence:
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