is a specific kind of: people.

is a broader term that covers: domain, world | age class | agriculture | brotherhood, fraternity, sodality | estate, estate of the realm, the three estates | labor, labour, proletariat, working class | lower class, underclass | bourgeoisie, middle class | booboisie | commonality, commonalty, commons | peasantry | demimonde | underworld | yeomanry | caste | caste | upper class, upper crust | ninja | firing line | immigrant class | center | old school | market | craft, trade | fair sex, woman, womanhood ... show more.

is a part of: society.

is a member of: class structure.

derivation: assort, class, classify, separate, sort, sort out | classify, relegate.