variants
or chiefly British aeon
as in forever
a long or seemingly long period of time
it's been eons since I saw a movie at the multiplex glaciers that formed eons ago
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of eon
Their body plan, immune system and ecological role have been resilient through eons of geological and climatic upheaval.
—
Scott Travers, Forbes.com, 7 Jan. 2026
At least some evidence suggests that NGC 2775 developed its odd shape after merging with other galaxies eons ago.
—Andrew Paul, Popular Science, 26 Nov. 2025
People have been settling in Taos for centuries, eons, inspired to create a life there, in some cases with their own ideas about protecting, enhancing, and animating the landscape.
—Michael Paterniti, Travel + Leisure, 14 Nov. 2025
With the midterm election still nearly a year off — and the 2028 presidential contest eons away — many of those angry or despondent over the benighted state of our union desperately wanted to do something to push back.
—Mark Z. Barabak, Mercury News, 8 Nov. 2025
See All Example Sentences for eon
Scott Travers, Forbes.com, 7 Jan. 2026
At least some evidence suggests that NGC 2775 developed its odd shape after merging with other galaxies eons ago.
—Andrew Paul, Popular Science, 26 Nov. 2025
People have been settling in Taos for centuries, eons, inspired to create a life there, in some cases with their own ideas about protecting, enhancing, and animating the landscape.
—Michael Paterniti, Travel + Leisure, 14 Nov. 2025
With the midterm election still nearly a year off — and the 2028 presidential contest eons away — many of those angry or despondent over the benighted state of our union desperately wanted to do something to push back.
—Mark Z. Barabak, Mercury News, 8 Nov. 2025
See All Example Sentences for eon
Recent Examples of Synonyms for eon
Noun
-
Those tush-pushes can’t beat you if The Winter Soldier’s facing third-and-forevers.—
Joe Nguyen,
Denver Post,
17 Jan. 2026
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One way to mess with an option team’s Plan A is to not only stick them with third-and-forevers, but to put them in an early hole, making them throw out of desperation.—
Sean Keeler,
The Denver Post,
14 Sep. 2019
Noun
-
Selling programs have been relentless in the S & P 500, as many of these algorithmic systems look to push ranges (both lower and higher), flushing weak longs out of the market.—
Jeff Kilburg,
CNBC,
6 Mar. 2026
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The 383-mile-long river runs along the borders between Washington, Maryland, Virginia and West Virginia.—
Rebecca Morin,
USA Today,
18 Feb. 2026
Noun
-
An 11-year-old girl was fatally shot at a playground in Cincinnati's West End, the second child of that age killed in the block since 2023.—
Cameron Knight,
Cincinnati Enquirer,
8 Mar. 2026
-
Payments largely depend on a recipient’s retirement age.—
Asher Notheis,
The Washington Examiner,
8 Mar. 2026
Cite this Entry
“Eon.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/eon. Accessed 9 Mar. 2026.
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