plural of middle class

plural of upper class

plural of professional class

(computing) A security breach that is the first of its kind, and leads to others of the same class

plural of class break

plural of class clown

(social sciences) A class of people, based on social power, wealth or another criterion.

plural of social class

(art) A teaching session in which art students practice drawing or painting the human figure using a live (often naked) model

Conflict between social or economic classes (especially between the capitalist and proletariat classes); the active expression of a theoretical class conflict looked at from any kind of socialist perspective.