Xơ Đăng
noun

Xo Dang, an ethnic group of Vietnam

Xơ-un
name

Seoul

a sister (a nun; a female member of a religious community)
fiber; fine thread; filament
rind (tough and unpalatable parts of produce)

xơ cứng
adj

(literally and figuratively) rigid; fixed; unchangeable; inflexible

xơ gan
noun

(medicine) cirrhosis (of the liver)

xơ hoá
noun

(medicine) fibrosis; fibrotic scarring

xơ múi
noun

ill-gotten gains; dirty money; dishonest profit
(literally) the fruit rind and the fruit meat

verb

to plunder; to profit excessively and dishonestly

xơi
verb

(colloquial) to eat, to drink

初
character

chữ Hán form of sơ (“in the initial stage; primary; elementary”).
Nôm form of xưa (“old; ancient; a long time ago”).