upper class; upper echelons of society; the rich and powerful; the elite
proletariat; lower classes
middle class; bourgeoisie
intellectual class; educated class; intelligentsia
class society; class-based society; hierarchical society
class system; caste system; hierarchical system
class struggle; class warfare; class conflict
middle class; bourgeoisie
salaried class; working class
upper classes; high society
the propertied class; bourgeoisie
classism; class discrimination
the fourth estate; the proletariat
the third estate; the bourgeoisie
exploiting class; exploiting classes