Raison d'être
Introduction   is a French expression commonly used in English, meaning "reason for being" or "reason to be". ''Raison d'être'' may refer to:
Music * Raison d'être (band), a Swedish dark-ambient-industrial-drone music project* ''Raison D'être'' (album), an album by Australian jazz fusion guitarist Frank Gambale===Songs===* "Raison d'etre", a song by Asriel from the album ''Abyss''* "raison detre", a song by Japanese rock band Dir En Grey on the album ''Gauze''* "Raison d'etre", a song by Japanese rock band Nightmare used as opening theme of the anime ''Claymore''* "Raison d'être", a song used as the ending theme of the Chobits anime by Japanese singer and voice actress Rie Tanaka* "Raison d'etre", a song by British rock band Buzzcocks from the album ''A Different Kind of Tension''* "Raison d'être～交差する宿命～", a song by Tomosuke Funaki under the alias Zektbach for the arcade game ''beatmania IIDX 17: Sirius''* "Raison d'être~レーゾンデートル~", a song by Japanese singer Eve from the album ''Smile''
Other * Raison d'être, an American Ale brewed by Dogfish Head