An underground system of tunnels and chambers with recesses for graves, used (in former times) as a cemetery; a tunnel system used for burying the dead, as in Paris or Ancient Rome.
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.