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
But Hezbollah is known to operate a network of underground tunnels and caverns.
—
Lauren Frayer, NPR, 12 Apr. 2026
Paddle through towering rock formations, the remnants of Virgin Gorda's volcanic past, to discover hidden caverns where waves and sand meet.
—Carley Rojas Avila, Travel + Leisure, 6 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
For more caves and caverns exploration, check out our guide.
—Tiffany Acosta, AZCentral.com, 19 Mar. 2026
The reserve, which can reach as many as 714 million barrels, is stored in large, high-security underground salt caverns along the gulf coastlines of Louisiana and Texas.
—Max Zahn, ABC News, 16 Mar. 2026
To remove oil from the reserves, water is pumped into the salt caverns, making the crude float to the surface, where it is captured and sent through pipelines to refineries.
—Wyatte Grantham-Philips, Fortune, 8 Mar. 2026
During periods of low electricity demand, electrical energy is used to compress air and store it in underground salt caverns.
—Prabhat Ranjan Mishra, Interesting Engineering, 6 Mar. 2026
Lauren Frayer, NPR, 12 Apr. 2026
Paddle through towering rock formations, the remnants of Virgin Gorda's volcanic past, to discover hidden caverns where waves and sand meet.
—Carley Rojas Avila, Travel + Leisure, 6 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
For more caves and caverns exploration, check out our guide.
—Tiffany Acosta, AZCentral.com, 19 Mar. 2026
The reserve, which can reach as many as 714 million barrels, is stored in large, high-security underground salt caverns along the gulf coastlines of Louisiana and Texas.
—Max Zahn, ABC News, 16 Mar. 2026
To remove oil from the reserves, water is pumped into the salt caverns, making the crude float to the surface, where it is captured and sent through pipelines to refineries.
—Wyatte Grantham-Philips, Fortune, 8 Mar. 2026
During periods of low electricity demand, electrical energy is used to compress air and store it in underground salt caverns.
—Prabhat Ranjan Mishra, Interesting Engineering, 6 Mar. 2026
Recent Examples of Synonyms for caverns
Noun
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Find rooms with private terraces, pools, and even caves, all with gorgeous caldera views.—
Stacey Leasca,
Travel + Leisure,
15 Apr. 2026
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Located in the northeastern part of the Buckeye State, this day-use state park rocks similar rugged cliffs, cascading waterfalls, and caves without the overcrowded parking lots.—
Joie Probst,
Midwest Living,
10 Apr. 2026
Noun
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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
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Stay at the Four Seasons Resort Nevis, which partners with Islander Watersports to offer excursions to scuba dive reefs, coral grottoes and shipwrecks just minutes from Pinney’s Beach.—
Adrienne Jordan,
USA Today,
6 Nov. 2025
Cite this Entry
“Caverns.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/caverns. Accessed 20 Apr. 2026.
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