What is the meaning of significant figure?

noun

  • Any digit of a number that is known with certainty; any digit of a number beginning with the leftmost non-zero digit and ending with the rightmost non-zero digit (or a zero considered to be the exact value. )
    • usage: "he calculated the answer to four significant figures"
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). significant figure. Retrieved September 21, 2026, from http://smartdefine.org/significant_figure/definitions/1310670
ChicagoWordNet. 2010. "significant figure" http://smartdefine.org/significant_figure/definitions/1310670 (accessed September 21, 2026).
HarvardWordNet 2010, significant figure, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/significant_figure/definitions/1310670>.
MLAWordNet. "significant figure" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/significant_figure/definitions/1310670>