trillion

noun

tril·​lion ˈtri(l)-yən How to pronounce trillion (audio)
Synonyms of trillionnext
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.
Only time will reveal how exactly the generation — which famously values more transparency around finances — will navigate the trillions transferred in wealth. Essence, 1 Jan. 2026 That simple truth is a big reason why more and more money (trillions of dollars, in fact) flows into a powerful, low-cost tool that’s quietly transformed investing. Eric Balchunas, Bloomberg, 1 Jan. 2026 This is the same law that made massive cuts and policy changes to Medicaid in an effort to pay for the bill's trillions of dollars in tax cuts. Kayla Dwyer, IndyStar, 30 Dec. 2025 The wellness guru believes that the secret to dieting is feeding your gut microbiome, which is the trillions of bacteria, viruses and fungi that inhabit your intestinal tract and bear huge impact on your weight and health. Lauren Mechling, Vogue, 27 Dec. 2025 See All Example Sentences for trillion

Word History

Etymology

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

First Known Use

1745, in the meaning defined at sense 2

Time Traveler
The first known use of trillion was in 1745

Browse Nearby Words

Cite this Entry

“Trillion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trillion. Accessed 2 Jan. 2026.

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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