首席 (shǒu xí) means “chief (representative, correspondent etc)”. It is an HSK 6 Chinese word in the HSK 3.0 vocabulary.
Practice each character:
他担任了首席执行官。
Tā dānrèn le shǒuxí zhíxíngguān.
He served as the chief executive officer.
Updated: 2026-07-18