cavern
/ˈkæv.ən/noun
A large cave.
Example sentence
- “catacombs caverning the hillsides”
Related words
boulderA large mass of stone detached from the surrounding land.caveA large, naturally-occurring cavity formed underground or in the face of a cliff or a hillside.gravelSmall fragments of rock, used for laying on the beds of roads and railways, and as ballast.slopeAn area of ground that tends evenly upward or downward.sandRock that is ground more finely than gravel, but is not as fine as silt (more formally, see grain sizes chart), forming beaches and deserts and also used in construction.ridgeAny extended protuberance; a projecting line or strip.