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
-
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
-
What a child like Opal longs for is community and feeling embraced and loved.—
Mary Ann Grossmann,
Twin Cities,
10 Aug. 2025
-
Saint-Saëns long had the reputation of being too expert for his own good, spinning emptily elegant spiderwebs of notes.—
Alex Ross,
New Yorker,
4 Aug. 2025
Noun
-
Their work in the market has considerably lowered the age of the squad and added more dynamism to a team that had started to look one-paced.—
Jordan Campbell,
New York Times,
15 Aug. 2025
-
Attorneys for the Commonwealth drew timelines on a large easel pad of white paper with each victims’ ages and corresponding school years to help jurors understand when the allegations took place.—
Stephanie Kuzydym,
The Courier-Journal,
15 Aug. 2025
Cite this Entry
“Eon.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/eon. Accessed 20 Aug. 2025.
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