The term sexism refers to discrimination against a person on the basis of gender. This is accompanied by stereotypes and attributions that are anchored within a culture and promote this discrimination. All people who are not read as cis men are more likely than average to experience sexism. People who experience or have experienced sexism are included under the umbrella term FLTI+ (female, lesbians, trans and inter people).
Sexism is considered one of the most common forms of discrimination, along with racism, antiziganism, anti-Semitism, rejectionism, sexism, classism, and homophobia, among others.
Learn more about your own sexism: https://implicit.harvard.edu/implicit/germany/selectatest.jsp