অর্থ : 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).
অর্থ : People having the same social, economic, or educational status.
উদাহরণ :
The working class.
An emerging professional class.
সমার্থক : class, social class, socio-economic class
অর্থ : A subpopulation divided into a stratified sampling.
Stratum meaning in Bengali (Bangla).