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.
The trillions of bacteria that inhabit our digestive system have a profound impact on how the immune system functions. William A. Haseltine, Forbes.com, 16 Sep. 2025 Economic response The trillions of dollars in revenue earned annually from the region’s oil and gas exports are strategically invested in global assets, which partially leverages the region’s soft power to secure influence in the world’s key decision-making centers. Mostafa Salem, CNN Money, 13 Sep. 2025 The trillions of dollars managed by BlackRock, State Street, and Vanguard gave them huge power over corporate America. Rohan Goswami, semafor.com, 11 Sep. 2025 Its call for a day of blockades, strikes, boycotts, demonstrations and other acts of protest came as Bayrou was preparing plans to massively slash public spending by $51 billion to rein in France's growing deficit and trillions in debts. Greg Norman, FOXNews.com, 10 Sep. 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 18 Sep. 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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