as in caves
a naturally formed underground chamber with an opening to the surface
a cavern with beautiful stalactites
Synonyms & Similar Words
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Recent Examples of caverns
The garter snakes survive Manitoba's severe winters by hibernating in a network of limestone crevasses and caverns below the frost line.
—
Kelli Bender, PEOPLE, 14 May 2026
They’re designed to be that way and will probably continue to function as sonic caverns so long as current aesthetics are in fashion.
—Allyson Reedy, Denver Post, 13 May 2026
Fire made the inhospitable conditions of caves more bearable, as caverns were often cold, dark, damp, and home to other residents like lions, bears, and hyenas, which had to be displaced.
—Literary Hub, 1 May 2026
Back at Big Thunder, there will be other fresh surprises, including 2,000 bats added in the approach to the ride’s rainbow caverns.
—Dewayne Bevil, The Orlando Sentinel, 30 Apr. 2026
These caverns are considered suitable for hydrogen storage because of their tight sealing properties and structural stability.
—Sujita Sinha, Interesting Engineering, 27 Apr. 2026
Explore a Cave Niagara Cave in Harmony is one of Midwest's largest limestone caverns, with a nearly 60-foot waterfall.
—Robin Pfeifer, Midwest Living, 23 Apr. 2026
Hard-core adventurers can opt for the Wild Cave Tour, a four-hour exploration that takes you a mile deeper into the bowels of the caverns.
—Kristy Tolley, Travel + Leisure, 14 Apr. 2026
But Hezbollah is known to operate a network of underground tunnels and caverns.
—Lauren Frayer, NPR, 12 Apr. 2026
Kelli Bender, PEOPLE, 14 May 2026
They’re designed to be that way and will probably continue to function as sonic caverns so long as current aesthetics are in fashion.
—Allyson Reedy, Denver Post, 13 May 2026
Fire made the inhospitable conditions of caves more bearable, as caverns were often cold, dark, damp, and home to other residents like lions, bears, and hyenas, which had to be displaced.
—Literary Hub, 1 May 2026
Back at Big Thunder, there will be other fresh surprises, including 2,000 bats added in the approach to the ride’s rainbow caverns.
—Dewayne Bevil, The Orlando Sentinel, 30 Apr. 2026
These caverns are considered suitable for hydrogen storage because of their tight sealing properties and structural stability.
—Sujita Sinha, Interesting Engineering, 27 Apr. 2026
Explore a Cave Niagara Cave in Harmony is one of Midwest's largest limestone caverns, with a nearly 60-foot waterfall.
—Robin Pfeifer, Midwest Living, 23 Apr. 2026
Hard-core adventurers can opt for the Wild Cave Tour, a four-hour exploration that takes you a mile deeper into the bowels of the caverns.
—Kristy Tolley, Travel + Leisure, 14 Apr. 2026
But Hezbollah is known to operate a network of underground tunnels and caverns.
—Lauren Frayer, NPR, 12 Apr. 2026
Recent Examples of Synonyms for caverns
Noun
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The idea is that the caves shall connect, & each comes to daylight at the present moment — Dinner!—
Literary Hub,
Literary Hub,
11 May 2026
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The rest of Curaçao’s eclectic must-dive list includes reefs, underwater caves, sunken ships, cars, and even an airplane wreck, all with healthy coral growth that attracts and sustains marine life.—
Erik Trinidad,
Travel + Leisure,
8 May 2026
Noun
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For Reykjavik native Gulla Jónsdóttir, the Aurora Borealis phenomena, molten-red erupting volcanoes, black sand shores and hot water grottoes were part of everyday life growing up.—
Sofia Celeste,
Footwear News,
8 May 2026
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The grottoes, just a half-mile in, are well worth visiting to see an example of the erosive powers of water and time.—
Staff Author,
Travel + Leisure,
1 May 2026
Cite this Entry
“Caverns.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/caverns. Accessed 20 May. 2026.
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