1. [verb] (intransitive) To become separated out into distinct layers or strata.
2. [verb] (transitive) To separate out into distinct layers or strata.
3. [verb] Divide society into social classes or castes; 'Income distribution often stratifies a society'.
4. [verb] Form layers or strata; 'The rock stratifies'.
5. [verb] Develop different social levels, classes, or castes; 'Society stratifies when the income gap widens'.
6. [verb] 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'.
7. [verb] Render fertile and preserve by placing between layers of earth or sand; 'stratify seeds'.
