Dictionary.com

nonillion

[ noh-nil-yuhn ]
/ noʊˈnɪl yən /
Save This Word!

noun, plural no·nil·lions, (as after a numeral) no·nil·lion.
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
amounting to one nonillion in number.
QUIZ
CUDDLE UP! A COZY QUIZ ON FALL WORDS HAS ARRIVED
If autumn is your ideal season, spice up your repertoire of "fall" vocabulary with this quiz on some warm and vivid descriptive words for the season.
Question 1 of 10
Which of the following words means “to make a crackling sound; crackle”?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of nonillion

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

OTHER WORDS FROM nonillion

no·nil·lionth, noun, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for nonillion

nonillion
/ (nəʊˈnɪljən) /

noun
(in Britain, France, and Germany) the number represented as one followed by 54 zeros (10 54)
(in the US and Canada) the number represented as one followed by 30 zeros (10 30)Brit word: quintillion

Derived forms of nonillion

nonillionth, adjective, noun

Word Origin for nonillion

C17: from French, from Latin nōnus ninth, on the model of million
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
FEEDBACK