Meaning of stratify
Definition of stratify
(verb)
divide society into social classes or castes; "Income distribution often stratifies a society"
develop different social levels, classes, or castes; "Society stratifies when the income gap widens"
form, arrange, or deposit in layers; "The fish are stratified in barrels"; "The rock was stratified by the force of the water"; "A statistician stratifies the list of names according to the addresses"