ra•cism /reszm/ noun [U] (disapproving)
1 the unfair treatment of people who belong to a different race; violent behaviour towards them: a victim of racism ugly outbreaks of racism Half a million people held a mass protest against racism last night.
2 the belief that some races of people are better than others: irrational racism
ra•cist /resst/ noun: He's a racist. The family was being harassed by racists. ra•cist adj.: racist groups / thugs racist attitudes / attacks / remarks

na•tion•al•ism /nænlzm/ noun [U]
1 the desire by a group of people who share the same race, culture, language, etc. to form an independent country: Scottish nationalism
2 (sometimes disapproving) a feeling of love for and pride in your country; a feeling that your country is better than any other