Discrimination is a behaviour that is induced by stereotypes and prejudices.
It consists of differential and unequal treatment of persons or groups because of their origin, membership or opinions, whether real or perceived.
Discrimination can be positive (on the basis of an advantageous prejudice) or negative (on the basis of a disadvantageous prejudice).
In everyday language, discrimination refers to a behavior that is harmful to people and affects many areas of social life, such as employment, housing, political rights, access to discos, etc. It can take various forms against very different community:
To recap:
TIP: If you want to go further, you can look at this other course from SCI CAT:
https://www.scicat.org/en/modules-for-global-justice/racialization-racism/