Discrimination is the unfair or prejudicial treatment of people and groups based on characteristics such as race, gender, age, or sexual orientation. Discrimination happens when an employer treats one employee less favourably than others.Discrimination means, at a very basic level, the act of separating out singular things or groups of things. It can be both an adjective and a verb. Discrimination, the intended or accomplished differential treatment of persons or social groups for reasons of certain generalized traits. In plain English, to discriminate means distinguishing, singling out, or making a distinction. We discriminate all the time in everyday life. To "discriminate" against someone means to treat that person differently, or less favorably, for some reason. Discrimination is the unequal treatment of a person or group based on the social group, class or category to which they belong. Example: A boss sexually harasses only staff who are racialized women.