(literary) question word meaning "what", "where", "why", or "how"; equivalent to 什么 shén​me, 哪里 nǎ​li, or 为什么 wèi​shén​me

(literary) a low-ranking official, child servant, or prisoner of war forced into servitude

a surname

(historical) the Xi people, an ancient ethnic group in northern China related to the Khitans, originally known as the 库莫奚 kù​mò​xī

an ancient place name in the State of Lu (in modern-day Tengzhou, Shandong), the fief of Xi Zhong during the Spring and Autumn period