Definition of cavern noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈkævən//
; NAmE NAmE//ˈkævərn//
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a cave, especially a large one The underground cavern was formed where water used to flow. Word Originlate Middle English: from Old French caverne or from Latin caverna, from cavus ‘hollow’. Compare with cave.
See the Oxford Advanced American Dictionary entry: cavern

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