English version

raison d'être

From Longman Dictionary of Contemporary Englishraison d'êtrerai‧son d'être /ˌreɪzɒn ˈdetrə $ -zoʊn-/ noun [singular] 🔊 🔊 REASONthe reason why something exists, why someone does something etc 🔊 Commerce was the town’s raison d'être.
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