1. 至上主义者：suprathreshold excitation 阈上兴奋 | supremacist 至上主义者 | suprematism 至上派

2. 种族优越论者 (名)：suprarenal 肾脏上的; 肾上腺的 (形) | supremacist 种族优越论者 (名) | supremacy 至高无上; 优势; 最高地位; 主权 (名)

1. 种族优越论者; (通常指)白人至上主义者
A supremacist is someone who believes that one group of people, usually white people, should be more powerful and have more influence than another group.

e.g. ...a plot by White supremacists to blow up a Black church in Los Angeles.
白人至上主义者试图炸毁洛杉矶一所黑人教堂的阴谋
e.g. ...a white supremacist group.
一个白人至上主义者组织

noun

1. a person who advocates the supremacy of some particular group or race over all others