Dictionary.com
Thesaurus.com

nonillion

American  
[noh-nil-yuhn] / noʊˈnɪl yən /

noun

plural

nonillions,

plural

nonillion
  1. a cardinal number represented in the U.S. by 1 followed by 30 zeros, and in Great Britain by 1 followed by 54 zeros.


adjective

  1. amounting to one nonillion in number.

nonillion British  
/ nəʊˈnɪljən /

noun

  1. (in Britain, France, and Germany) the number represented as one followed by 54 zeros (10 54 )

  2. Brit word: quintillion.  (in the US and Canada) the number represented as one followed by 30 zeros (10 30 )

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • nonillionth noun

Etymology

Origin of nonillion

1680–90; < French, equivalent to non- (< Latin nōnus ninth) + -illion, as in million million

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The DNA recovered is “3.6 nonillion times” more likely to originate from Jones “than an unrelated individual selected at random from the U.S. population,” the affidavit states.

From Seattle Times • Feb. 15, 2022

At the same time, only a tiny fraction of the estimated ten nonillion, or 10³¹, phages have been discovered and categorized in a library.

From Salon • Aug. 4, 2019

According to The New York Times’s Playoff Simulator, there are 325 nonillion ways the season could end.

From New York Times • Nov. 16, 2018

In 2012, Forbes estimated the planet’s value at 26.9 nonillion dollars—26.9 with thirty zeroes after it.

From The New Yorker • Aug. 24, 2016

Who are a million, a trillion, a nonillion young men?

From The Enormous Room by Cummings, E. E. (Edward Estlin)