trillion

noun

tril·​lion ˈtri(l)-yən How to pronounce trillion (audio)
1
: a number equal to 1,000 times one billion see Table of Numbers
2
: an indeterminately large number
a trillion mosquitoes out tonight
trillion adjective
trillionth adjective or noun

Examples of trillion in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Saturn’s rings are composed of trillions of small icy particles. Phil Plait, Scientific American, 21 Mar. 2025 While Apple is presently worth trillions, its brand value alone is incalculably high. John Tamny, Forbes, 20 Mar. 2025 The order argues that even though the department has spent trillions in federal education dollars over 46 years, the U.S. has not improved in education. Joey Garrison, USA TODAY, 19 Mar. 2025 As impressive as that growth rate is for a company worth trillions, triple-digit expansion seems to be a thing of the past. Kevin Stankiewicz, CNBC, 14 Mar. 2025 See All Example Sentences for trillion

Word History

Etymology

French, from tri- + -illion (as in million)

First Known Use

1690, in the meaning defined at sense 1

Time Traveler
The first known use of trillion was in 1690

Browse Nearby Words

Cite this Entry

“Trillion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trillion. Accessed 28 Mar. 2025.

Kids Definition

trillion

noun
tril·​lion ˈtril-yən How to pronounce trillion (audio)
1
: a number equal to 1,000 times one billion see number
2
: a very large number
a trillion mosquitoes out tonight
trillion adjective
trillionth adjective
trillionth noun

More from Merriam-Webster on trillion

Last Updated: - Updated example sentences
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