Racism (noun)

1. Prejudice, discrimination, or antagonism directed against a person or people on the basis of their membership in a particular racial or ethnic group, typically one that is a minority or marginalized.
2. The belief that some races are by nature superior to others.
3. Discrimination and prejudice based on race.

Origin:

From french racisme, from race ("race") + -isme ("-ism").

Examples:

1. Racism is a destructive force in society.
2. He was fired for making racist comments.
3. The racism and discrimination faced by the minority group was unacceptable.
4. The racism was rooted in ignorance and fear.
5. The racism was so deeply ingrained it was hard to see.