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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Example Sentences
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Recent Examples of eon
Some work over eons—building the bedrock, for example—and some change daily.
—
Michelle Williams, Forbes.com, 18 June 2025
In the floor, look for ancient snail fossils that were embedded in the stone eons ago and included by builders to highlight Maryland’s coastal geology.
—Charles Babington, New York Times, 21 May 2025
But neither a chart of geology’s eons, eras, and periods, nor a calculus of infinitesimals, can eliminate a sense of awe in the face of geological time.
—Lewis Hyde, Harpers Magazine, 18 June 2025
Thanks to Gaia, scientists now can better gauge the amount of dark matter within our galaxy and have been able to track the Milky Way’s growth and evolution across eons via relic streams of stars strewn from ancient mergers with other, smaller galaxies.
—Lee Billings, Scientific American, 18 June 2025
See All Example Sentences for eon
Michelle Williams, Forbes.com, 18 June 2025
In the floor, look for ancient snail fossils that were embedded in the stone eons ago and included by builders to highlight Maryland’s coastal geology.
—Charles Babington, New York Times, 21 May 2025
But neither a chart of geology’s eons, eras, and periods, nor a calculus of infinitesimals, can eliminate a sense of awe in the face of geological time.
—Lewis Hyde, Harpers Magazine, 18 June 2025
Thanks to Gaia, scientists now can better gauge the amount of dark matter within our galaxy and have been able to track the Milky Way’s growth and evolution across eons via relic streams of stars strewn from ancient mergers with other, smaller galaxies.
—Lee Billings, Scientific American, 18 June 2025
See All Example Sentences for eon
Recent Examples of Synonyms for eon
Noun
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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
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Printed with thermochromic ink, the stamp reveals a second image of the moon when a finger is pressed to it, and a sheet of 16 Forever stamps features a map of the eclipse path.—
Meg Jones,
Milwaukee Journal Sentinel,
18 Aug. 2017
Noun
-
Your talks don’t have to be exactly one-minute long, but sticking to three to eight minutes is a good rule of thumb, Davis says.—
Renée Onque,
CNBC,
26 June 2025
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Part of me, of course, longs to see a more comprehensive exhibit, that the visitor could absorb bit by bit over the course of months.—
Michael Barnes,
Austin American Statesman,
2 July 2025
Noun
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Rock icon Ozzy Osbourne, who died July 22, 2025, at age 76, was a frequent visitor to Milwaukee during his touring days, with the groundbreaking heavy metal band Black Sabbath and on his own as a solo act.—
Chris Foran,
jsonline.com,
23 July 2025
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Magnesium needs vary depending on age, gender, and pregnancy status.1 Adult men: 400-420 milligrams (mg) daily Adult women: 310-400 mg daily Magnesium: 154 mg per ounce, or 37% of the Daily Value (DV) Pumpkin seeds are an excellent source of magnesium.—
Jillian Kubala,
Health,
22 July 2025
Cite this Entry
“Eon.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/eon. Accessed 29 Jul. 2025.
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