variants
or chiefly British aeon
1
: an immeasurably or indefinitely long period of time : age
I haven't seen him in eons.
2
a
: a very large division of geologic time usually longer than an era
the Archean eon
b
: a unit of geologic time equal to one billion years
Examples of eon in a Sentence
Recent Examples on the Web
No Bill Belichick for first time in eons and greater Robert Kraft influence muddy this pick, as do rumors Patriots may trade down.
—
Greg Cote, Miami Herald, 24 Apr. 2024
The Jayhawks haven’t been this low in our projections in eons, but the level of uncertainty in Lawrence is unusually high.
—Jon Wilner, The Mercury News, 8 Apr. 2024
Instead, the rovers are acting as extraterrestrial detectives, hunting for clues that life may have existed eons ago.
—Amy J. Williams, Discover Magazine, 16 Mar. 2024
For eons this vital waterway has attracted animals and humans alike, and has been the foundation for agricultural cultures from prehistoric times to the modern day.
—Roger Naylor, The Arizona Republic, 7 Mar. 2024
For eons, any water that might have accumulated there will have been preserved as ice.
—David W. Brown, The New Yorker, 4 Mar. 2024
The southern route into the park, along the winding two-lane Badwater Road, cuts through rugged, dramatic topography, shaped by eons of erosion.
—Reis Thebault, Washington Post, 1 Mar. 2024
Over eons, the softer sedimentary rocks around the immense bulge of hard stone washed away.
—Mark Jenkins, Smithsonian Magazine, 2 Apr. 2024
From a numbers standpoint, the region has its best chance in eons to end that drought.
—Jon Wilner, The Mercury News, 17 Mar. 2024
Greg Cote, Miami Herald, 24 Apr. 2024
The Jayhawks haven’t been this low in our projections in eons, but the level of uncertainty in Lawrence is unusually high.
—Jon Wilner, The Mercury News, 8 Apr. 2024
Instead, the rovers are acting as extraterrestrial detectives, hunting for clues that life may have existed eons ago.
—Amy J. Williams, Discover Magazine, 16 Mar. 2024
For eons this vital waterway has attracted animals and humans alike, and has been the foundation for agricultural cultures from prehistoric times to the modern day.
—Roger Naylor, The Arizona Republic, 7 Mar. 2024
For eons, any water that might have accumulated there will have been preserved as ice.
—David W. Brown, The New Yorker, 4 Mar. 2024
The southern route into the park, along the winding two-lane Badwater Road, cuts through rugged, dramatic topography, shaped by eons of erosion.
—Reis Thebault, Washington Post, 1 Mar. 2024
Over eons, the softer sedimentary rocks around the immense bulge of hard stone washed away.
—Mark Jenkins, Smithsonian Magazine, 2 Apr. 2024
From a numbers standpoint, the region has its best chance in eons to end that drought.
—Jon Wilner, The Mercury News, 17 Mar. 2024
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'eon.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near eon
Cite this Entry
“Eon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/eon. Accessed 2 May. 2024.
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