Gender intersectionality examines how social identities like race, gender, and class create unique experiences of privilege and oppression. Coined by Kimberlé Crenshaw in 1989, it recognizes that no single identity fully captures an individual's lived experience. Rooted in Black feminist thought, intersectionality challenges single-axis frameworks that prioritize one identity over others. It's now applied across disciplines to examine complex social inequalities, considering how multiple systems of oppression reinforce each other.