A large underground chamber or cave, typically formed by natural processes such as water erosion. It suggests a space larger and more impressive than an ordinary cave.
From Old French 'caverne,' from Latin 'caverna,' from 'cavus' (hollow). The word has maintained its essential meaning since ancient times, always suggesting a significant underground void or hollow space in rock formations.
Caverns have captivated human imagination for millennia—they're simultaneously shelter and mystery, safety and danger. Many of the world's most spectacular caverns, like Mammoth Cave, took millions of years to form through the patient work of underground rivers dissolving limestone grain by grain.
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