an abstract place usually conceived as having depth | an extended social group having a distinctive cultural and economic organization |
a subpopulation divided into a stratified sampling | a formal association of people with similar interests |
people having the same social, economic, or educational status | the fashionable elite |
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) | the state of being with someone |