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Meaning of raisonneur

rai•son•neur

Pronunciation: (rez"u-nûr' Fr. re-zô-nœr'), [key]
— pl. -neurs
  1. a character in a play, novel, or the like who voices the central theme, philosophy, or point of view of the work.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.