What is the meaning of black swan?

noun

  • Large Australian swan having black plumage and a red bill.
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). black swan. Retrieved September 21, 2026, from http://smartdefine.org/black_swan/definitions/1196852
ChicagoWordNet. 2010. "black swan" http://smartdefine.org/black_swan/definitions/1196852 (accessed September 21, 2026).
HarvardWordNet 2010, black swan, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/black_swan/definitions/1196852>.
MLAWordNet. "black swan" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/black_swan/definitions/1196852>