(n): the act of distributing things into classes or categories of the same type
(n): the condition of being arranged in social strata or classes within a group
(n): a mode of being or form of existence of a person or thing
(n): forming or depositing in layers
(n): (geology) a natural process whereby geological features are modified
(n): a layered configuration
(n): any spatial attributes (especially as defined by outline)
(n): the placing of seeds in damp sand or sawdust or peat moss in order to preserve them or promote germination
(n): the act of putting something in a certain place