septendecillion

American  

[sep-ten-di-sil-yuhn] / ˌsɛp tɛn dɪˈsɪl jən /

noun

septendecillions, plural septendecillion plural

1. a cardinal number represented in the U.S. by 1 followed by 54 zeros, and in Great Britain by 1 followed by 102 zeros.

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adjective

1. amounting to one septendecillion in number.

Other Word Forms

Derived Forms

• septendecillionth
  adjective

Inflected Forms

Nouns

• septendecillion
  plural
• septendecillions
  plural

Etymology

Origin of septendecillion

1935–40; < Latin septendec ( im ) seventeen + -illion, as in million

Example Sentences

As unpleasant as it sounds to have someone spend millions attacking your character and candidacy, it seems to be pretty good politics to get crosswise with A.I.

From Slate • Jun. 2, 2026

And in an era where football broadcast revenue is the lifeblood of college sports—particularly as teams spend millions on their rosters—that growing gap has become the true measure of the business.

From The Wall Street Journal • Jan. 23, 2026

We will spend millions of dollars of funds that could be used for other purposes, such as relief from natural disasters, law enforcement or education.

From Salon • Jun. 19, 2025

Top US firms typically spend millions of dollars on personal security for high-level executives.

From BBC • Dec. 6, 2024

Even nearby civilizations could spend millions of years in such separate or joint colonial ventures without ever stumbling upon our obscure solar system.

From "Cosmos" by Carl Sagan