working class

working class
ˌworking ˈclass noun [singular also + plural verb] British English (also working classes)
the group of people in society who traditionally do physical work and do not have much money or power:
    Marx wrote about the political struggles of the working class.
—working class adjective:
    working class women
    the traditional working class occupations
    He is proud of his working class background.
⇨ lower class, middle class, upper class