as in caves
a naturally formed underground chamber with an opening to the surface
a cavern with beautiful stalactites
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Recent Examples of caverns
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
The caverns boast 4 miles of cave passages, as well as over 400 acres aboveground.
—Madeline Bartos, CBS News, 6 Apr. 2026
Few caverns possess the same cache of fossils as Bender’s Cave, however.
—Andrew Paul, Popular Science, 26 Mar. 2026
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
The caverns boast 4 miles of cave passages, as well as over 400 acres aboveground.
—Madeline Bartos, CBS News, 6 Apr. 2026
Few caverns possess the same cache of fossils as Bender’s Cave, however.
—Andrew Paul, Popular Science, 26 Mar. 2026
Recent Examples of Synonyms for caverns
Noun
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The Moroccan Navy released video Wednesday showing military divers examining caves, aircraft scanning the ocean surface and teams of uniformed personnel and canine crews combing the rocky shoreline.—
ABC News,
ABC News,
6 May 2026
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The Moroccan navy released video Wednesday showing military divers examining caves, aircraft scanning the ocean surface and teams of uniformed personnel and canine crews combing the rocky shoreline.—
Akram Oubachir,
Los Angeles Times,
6 May 2026
Noun
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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
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Highlights include Xi’an’s Terracotta Warriors, the cliffside grottoes of Dunhuang, and a camel ride across the dunes of the Gobi Desert.—
Everett Potter,
Forbes.com,
26 Jan. 2026
Cite this Entry
“Caverns.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/caverns. Accessed 10 May. 2026.
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