A floor of a building below ground level.
Last place in a sports conference standings.
A mass of igneous or metamorphic rock forming the foundation over which a platform of sedimentary rocks is laid.
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.