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
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
The town is famous for its caverns, discovered in 1878, but is an ideal home base for outdoor activities like hiking, river tubing, and horseback riding.
—Erica Silverstein, Travel + Leisure, 16 Mar. 2026
Here's what to know about the SPR, a network of salt caverns in Texas and Louisiana that can hold up to 714 million barrels of crude.
—Megan Cerullo, CBS News, 10 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
The world’s largest stockpile of emergency oil, the SPR is held in a network of underground salt caverns in Louisiana and Texas.
—Chris Isidore, CNN Money, 3 Mar. 2026
Beyond the caverns, the site also features several other attractions, including The Garden Maze, Shenandoah Heritage Village, and Toy Town, which will delight children of all ages.
—Jennifer Prince, Southern Living, 28 Feb. 2026
This extensive network of limestone caverns and underground waterways carved by the Río Camuy will reopen to the public in 2026, after being closed due to Hurricane Maria and then closed again after Hurricane Fiona.
—Kathleen Rellihan, Outside, 10 Feb. 2026
Max Zahn, ABC News, 16 Mar. 2026
The town is famous for its caverns, discovered in 1878, but is an ideal home base for outdoor activities like hiking, river tubing, and horseback riding.
—Erica Silverstein, Travel + Leisure, 16 Mar. 2026
Here's what to know about the SPR, a network of salt caverns in Texas and Louisiana that can hold up to 714 million barrels of crude.
—Megan Cerullo, CBS News, 10 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
The world’s largest stockpile of emergency oil, the SPR is held in a network of underground salt caverns in Louisiana and Texas.
—Chris Isidore, CNN Money, 3 Mar. 2026
Beyond the caverns, the site also features several other attractions, including The Garden Maze, Shenandoah Heritage Village, and Toy Town, which will delight children of all ages.
—Jennifer Prince, Southern Living, 28 Feb. 2026
This extensive network of limestone caverns and underground waterways carved by the Río Camuy will reopen to the public in 2026, after being closed due to Hurricane Maria and then closed again after Hurricane Fiona.
—Kathleen Rellihan, Outside, 10 Feb. 2026
Recent Examples of Synonyms for caverns
Noun
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The Chiafura caves and San Matteo hill offer glimpses into Sicilian life, while Sampieri beach provides the perfect excuse to do nothing.—
Jenn Rice,
Vogue,
18 Mar. 2026
-
The Scottish singer-songwriter and activist visited Mexico this week incognito to explore the Mayan underworld, or Xibalbá — a system of caves, rivers, and underground lakes that wind beneath the Yucatan Peninsula.—
Natalia Cano,
Billboard,
13 Mar. 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 21 Mar. 2026.
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