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cavern

American  
[kav-ern] / ˈkæv ərn /

noun

  1. a cave, especially one that is large and mostly underground.

  2. Pathology. a cavity that is produced by disease, especially one produced in the lungs by tuberculosis.


verb (used with object)

  1. to enclose in or as if in a cavern.

  2. to hollow out to form a cavern.

cavern British  
/ ˈkævən /

noun

  1. a cave, esp when large and formed by underground water, or a large chamber in a cave

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. to shut in or as if in a cavern

  2. to hollow out

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
cavern Scientific  
/ kăvərn /
  1. A large cave.


Etymology

Origin of cavern

1325–75; Middle English caverne < Latin caverna, equivalent to cav ( us ) hollow + -erna, as in cisterna cistern

Explanation

A cavern is a large cave or a large chamber in a cave. Or, if your bedroom is very dark, your mother might want you to open the blinds and let some light into that cavern. The word cavern is a late Middle English word that comes from the Latin root cavus, meaning “hollow.” Cavern typically describes a cave, but it can refer to any large enclosed space, especially a space that's dark like a cave. You might sit in a vast cavern when you go to the opera. Cavern can also be used figuratively — you could explore the dark cavern of your mind.

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Vocabulary lists containing cavern

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The cave, an underwater system which extends for hundreds of meters through multiple chambers and internal passages, begins with a first large, bright cavern with a sandy bottom.

From Barron's • May 21, 2026

Down a corner on the ground floor was a shaft descending more than 30 feet underground that then opened up into a cavern presumably used as a depot.

From Los Angeles Times • Jan. 8, 2025

He soon grew to love the cavern system, which dates back 350 million years, and by the age of seven he had explored it more than 100 times.

From BBC • Dec. 25, 2024

As we make our way into the vast cavern, my guide explains how Eberhard dissected samples and sent them to England for analysis.

From Salon • Aug. 23, 2024

He felt a wild exultation as he stepped into the cavern.

From "Impossible Creatures" by Katherine Rundell

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