What is the meaning of zilch?

noun

8
 
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APAWordNet. (2010). zilch. Retrieved September 25, 2018, from http://smartdefine.org/zilch/definitions/1321997
ChicagoWordNet. 2010. "zilch" http://smartdefine.org/zilch/definitions/1321997 (accessed September 25, 2018).
HarvardWordNet 2010, zilch, Smart Define, viewed 25 September, 2018, <http://smartdefine.org/zilch/definitions/1321997>.
MLAWordNet. "zilch" 23 October 2010. Web. 25 September 2018. <http://smartdefine.org/zilch/definitions/1321997>