Shei

What does it mean?

谁 (shéi or shuí) means "who". It is one of the first question words people learn in Chinese.

• 你是谁？ — Nǐ shì shéi? — Who are you?
• 这是谁的？ — Zhè shì shéi de? — Whose is this?
• 谁都可以 — Shéi dōu kěyǐ — Anyone can.

The traditional form is 誰. The left part (言) means "speech" — fitting for a word used to ask.