All cavern synonyms
cav·ern
C c noun cavern
- pothole — a deep hole; pit.
- cave — A cave is a large hole in the side of a cliff or hill, or one that is under the ground.
- grotto — a cave or cavern.
- hole — an opening through something; gap; aperture: a hole in the roof; a hole in my sock.
- subterrane — a cave or subterranean room.
- hollow — having a space or cavity inside; not solid; empty: a hollow sphere.
- cavity — A cavity is a space or hole in something such as a solid object or a person's body.
- fissure — a narrow opening produced by cleavage or separation of parts.