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
The caverns boast 4 miles of cave passages, as well as over 400 acres aboveground.
—
Madeline Bartos, CBS News, 6 Apr. 2026
In reality, the physics and chemistry within a salt cavern dictate a very different story.
—Siddharth Misra, Fortune, 28 Mar. 2026
Few caverns possess the same cache of fossils as Bender’s Cave, however.
—Andrew Paul, Popular Science, 26 Mar. 2026
For more caves and caverns exploration, check out our guide.
—Tiffany Acosta, AZCentral.com, 19 Mar. 2026
See All Example Sentences for cavern
Madeline Bartos, CBS News, 6 Apr. 2026
In reality, the physics and chemistry within a salt cavern dictate a very different story.
—Siddharth Misra, Fortune, 28 Mar. 2026
Few caverns possess the same cache of fossils as Bender’s Cave, however.
—Andrew Paul, Popular Science, 26 Mar. 2026
For more caves and caverns exploration, check out our guide.
—Tiffany Acosta, AZCentral.com, 19 Mar. 2026
See All Example Sentences for cavern
Recent Examples of Synonyms for cavern
Noun
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Nearly all the instructions were relayed electronically from the director’s cave and translated by a bilingual assistant director.—
Chang Che,
New Yorker,
25 Apr. 2026
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Emma does have some great activities planned with one bus going to make (bleck) cheese and another to go exploring caves.—
Brian Moylan,
Vulture,
24 Apr. 2026
Noun
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In the spa’s sauna area, visitors can choose from a Finnish sauna, charcoal sauna, salt grotto, and an ice room, among other features.—
Condé Nast,
Condé Nast Traveler,
23 Apr. 2026
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Take 25 Hours, in Long Island City, for example, which is freighted with a depressing ambience that is equal parts chemistry lab and subterranean grotto.—
Vince Aletti,
New Yorker,
17 Apr. 2026
Cite this Entry
“Cavern.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/cavern. Accessed 1 May. 2026.
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