the class of wage earners, esp. those who earn their living by manual labor or who are dependent for support on daily or casual employment; the working class.

(in Marxist theory) the class of workers, esp. industrial wage earners, who do not possess capital or property and must sell their labor to survive.

the lowest or poorest class of people, possessing no property, esp. in ancient Rome.

noun

blue-collar workers , bourgeoisie , commoners , common people , hoi polloi , lower class , peasant , plebians , proletarian , rank and file , working stiffnotes:bourgeoisie is the middle class , while the proletariat is a lower working class , commonalty , masses , plebs , rabble , working class