An underground chamber.
A large, dark place or space.
A large cave.
To put into a cavern.
To form a cavern or deep depression in.
An underground vault, especially one beneath a church that is used as a burial place.
Any of the genus Cryptopus of orchids of Madagascar and Mauritius.
A small pit or cavity in the surface of an organ or other structure.
Any of the genus Cryptocoryne of aquatic plants of southern and southeastern Asia.