one of several parallel layers of material arranged one on top of another (such as a layer of tissue or cells in an organism or a layer of sedimentary rock)

people having the same social, economic, or educational status; the working class; an emerging professional class

[ Syn: class , social class , socio-economic class ]

an abstract place usually conceived as having depth; a good actor communicates on several levels; a simile has at least two layers of meaning; the mind functions on many strata simultaneously

[ Syn: level , layer ]