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render fertile and preserve by placing between layers of earth or sand
e.g. stratify seeds
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form layers or strata
e.g. The rock stratifies
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form, arrange, or deposit in layers
e.g. The fish are stratified in barrels
e.g. The rock was stratified by the force of the water
e.g. A statistician stratifies the list of names according to the addresses
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divide society into social classes or castes
e.g. Income distribution often stratifies a society
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develop different social levels, classes, or castes
e.g. Society stratifies when the income gap widens