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
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.
—
ABC News, 7 Mar. 2026
The single unit power, energy storage capacity and conversion efficiency of this project rank first globally among similar salt cavern CAES power plants, according to the company.
—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
See All Example Sentences for cavern
ABC News, 7 Mar. 2026
The single unit power, energy storage capacity and conversion efficiency of this project rank first globally among similar salt cavern CAES power plants, according to the company.
—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
See All Example Sentences for cavern
Recent Examples of Synonyms for cavern
Noun
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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
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The Creature carries Elizabeth's bleeding body to a cave.—
Randall Colburn,
Entertainment Weekly,
12 Mar. 2026
Noun
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Its attractions include a mossy, cool grotto of ferns as well as vast views of Ashdown Forest and distant towns.—
Amy Waldman,
Travel + Leisure,
9 Mar. 2026
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As the 14-year-old child of a poor family in 1858, Saint Bernadette experienced numerous apparitions of a young woman in a cave or grotto, seemingly the Virgin Mary, asking for a chapel to be built on the site.—
Chris Jones,
Chicago Tribune,
21 Feb. 2026
Cite this Entry
“Cavern.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/cavern. Accessed 18 Mar. 2026.
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