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Definition of raison d’être noun from the Oxford Advanced Learner's Dictionary

raison d’être

noun
 
/ˌreɪzɒ̃ ˈdetrə/
 
/ˌreɪzɔːn ˈdetrə/
[singular] (from French)
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  1. the most important reason for somebody’s/something’s existence
    • Work seems to be her sole raison d'être.
fasting
noun
 
 
From the Topic
Cooking and eating
C2
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