as in cave
a naturally formed underground chamber with an opening to the surface
a cavern with beautiful stalactites
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Recent Examples of cavern
On a seemingly innocuous nature walk to some local caverns, Homer stupidly touches a giant stalactite and opens a hole in the ground through which the family falls.
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Jesse David Fox, Vulture, 17 Dec. 2024
The pupfish are now only found in the upper 80 feet of the cave in Death Valley on an 11-foot by 16-foot shallow shelf in the cavern’s entrance.
—Laura Baisas, Popular Science, 12 Dec. 2024
Located roughly an hour away by car, Great Basin National Park officially earned its current status in 1986, with just over 75,000 acres of sloping hills and craggy caverns to explore.
—Jared Ranahan, Forbes, 1 Dec. 2024
During the ice ages, the caves dried out as the sea level dropped, and the seeping water from the surface decorated the caverns with deposits such as stalagmites and stalactites, collectively known as speleothems.
—Martin Broen, Smithsonian Magazine, 1 Oct. 2024
See all Example Sentences for cavern 
Jesse David Fox, Vulture, 17 Dec. 2024
The pupfish are now only found in the upper 80 feet of the cave in Death Valley on an 11-foot by 16-foot shallow shelf in the cavern’s entrance.
—Laura Baisas, Popular Science, 12 Dec. 2024
Located roughly an hour away by car, Great Basin National Park officially earned its current status in 1986, with just over 75,000 acres of sloping hills and craggy caverns to explore.
—Jared Ranahan, Forbes, 1 Dec. 2024
During the ice ages, the caves dried out as the sea level dropped, and the seeping water from the surface decorated the caverns with deposits such as stalagmites and stalactites, collectively known as speleothems.
—Martin Broen, Smithsonian Magazine, 1 Oct. 2024
See all Example Sentences for cavern
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Cite this Entry
“Cavern.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/cavern. Accessed 22 Jan. 2025.
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