The Chinese word for daughter is
女儿

nǚ ér

Chinese Definition

daughter
1. 女儿
2. 女性的子孙
3. 女性
4. 女孩儿
Components
女
1. Variant of 汝
儿
1. Simplified form of 兒
2. usage. May be used to specially write erhua (or the rhotic sound) in traditional Chinese, in contrast with child.
3. Variant of 人

女兒
1. n. daughter
嫁女兒 - to give a daughter in marriage; to try to marry off a daughter
您女兒芳齡幾何？ - How old is your daughter? honorific
我那失散多年的女兒至今還無著着zhuó落。 - The whereabouts of the daughter I lost years ago are still unknown.
2. n. (Wenzhounese) girl