raison d'être

noun

rai·​son d'être ˌrā-ˌzōⁿ-ˈde-trə How to pronounce raison d'être (audio)
-ˈdetrᵊ
variants or less commonly raison d'etre
plural raisons d'être also raisons d'etre ˌrā-ˌzōⁿz-ˈde-trə How to pronounce raison d'être (audio)
-ˈdetrᵊ
: reason or justification for existence

Examples of raison d'être in a Sentence

Art is his raison d'être.

Word History

Etymology

French

First Known Use

1864, in the meaning defined above

Time Traveler
The first known use of raison d'être was in 1864

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Cite this Entry

“Raison d'être.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/raison%20d%27%C3%AAtre. Accessed 9 Sep. 2025.

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