nonillion

noun, often attributive
no·​nil·​lion | \ nō-ˈnil-yən How to pronounce nonillion (audio) \

Definition of nonillion

US : a number equal to 1 followed by 30 zeros — see Table of Numbers also, British : a number equal to 1 followed by 54 zeros — see Table of Numbers

First Known Use of nonillion

1690, in the meaning defined above

History and Etymology for nonillion

French, from Latin nonus ninth + French -illion (as in million) — more at noon

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Time Traveler for nonillion

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The first known use of nonillion was in 1690

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Cite this Entry

“Nonillion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nonillion. Accessed 23 Jul. 2021.

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