先生 (xiān sheng) means “teacher; gentleman; sir; mister (Mr.); husband; (dialect) doctor”. It is an HSK 1 Chinese word in the HSK 3.0 vocabulary.
Measure word: 位
Practice each character:
先生,您好!
Xiānsheng, nín hǎo!
Sir, hello!
Updated: 2026-05-27