This is the 1911th most frequent Chinese word.
姓
Surname; family name.
In this question, '姓' is used as a verb to inquire about someone's family name or surname, which is a standard use referring to one's inherited family name.
你姓什么？
What is your last name?
Here, '姓' serves as a verb to state the surname, demonstrating ownership or association with a family name.
我们姓王。
Our last name is Wang.
In this example, '姓' is used as a noun, referring to someone's family name explicitly and describing its characteristic.