/su:'preməsɪ; also, in ɑritish use, 英式英语读作 sju:-; su`prɛməsɪ/
n ~ (over sb/sth) [U] being supreme; position of the highest power, authority or status 至高无上; 最高权力; 最高权威; 最高地位
*achieve military supremacy over neighbouring countries 获得超越邻国的军事优势
* challenging Japan's supremacy in the field of electronics 争夺日本在电子学领域中占据的领先地位
* the dangerous notion of white supremacy, ie that white races are better than others and should control them 白人至高无上的危险观念（认为白色人种优于其他人种因而应成为主宰者）.

n[U]
the position in which you are more powerful or advanced than anyone else
　Japan's unchallenged supremacy in the field of electronics
→white supremacist