luminary
noun [ C ] formal uk/ˈluː.mɪ.nər.i/ us/ˈluː.mə.ner.i/
（某一领域的）专家，知名人士
a person who is famous and important in a particular area of activity
Luminaries of stage and screen (= famous actors) assembled for last night's awards ceremony. 在昨晚的颁奖典礼上演艺界明星济济一堂。
Synonyms: leading lightnotable