What is the meaning of Sexism?

The belief that people of one sex (or gender) are inherently different from those of another sex, and generally that one sex is superior to others.

Discrimination or different treatment based on sex or gender, especially discrimination against women.

Attitudes or actions that are based on or promote the expectation that people adhere to stereotypical social roles (gender roles) based on sex.

sexism

sexism

Source: wiktionary.org