Intersectionality (or intersectional theory) is the study of overlapping or intersecting social identities and related systems of oppression, domination, or discrimination. The theory suggests that—and seeks to examine how—various biological, social and cultural categories such as gender, race, class, ability, sexual orientation, religion, caste, age, nationality and other sectarian axes of identity interact on multiple and often simultaneous levels. The theory proposes that we should think of each element or trait of a person as
inextricably linked with all of the other elements in order to fully
understand one's identity. This framework can be used to understand how systemic injustice and social inequality occur on a multidimensional basis. Intersectionality holds that the classical conceptualizations of oppression within ociety—such as racism, sexism, classism, ableism, homophobia, transphobia, xenophobia and belief-based bigotry—do
not act independently of each other. Instead, these forms of oppression interrelate, creating a system of oppression that reflects the "intersection" of multiple forms of discrimination.