cavern
1. [ noun ] any large dark enclosed space
Examples:

"his eyes were dark caverns"

Related terms: enclosure
2. [ noun ] (geography) a large cave or a large chamber in a cave
Related terms: cave carlsbad_caverns
3. [ verb ] hollow out as if making a cavern
Synonyms: cavern_out
Related terms: hollow
Similar spelling:   cavernous
  Cabernet
  cape_horn