cavern.

A large cave or a spacious underground chamber.

Use it for

Words that belong together

• a vast cavern
• a limestone cavern

On the page

Their lamps found the near wall of the cavern but could not reach the far side.

Usage notes

Primary category: setting / environment. Forms: Singular cavern; plural caverns. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Writing functions: setting, description. Commonness: moderately common.