不但 (bù dàn) means “not only (... but also ...)”. It is an HSK 3 Chinese word in the HSK 3.0 vocabulary.
Practice each character:
他不但聪明,而且努力。
Tā bùdàn cōngming, érqiě nǔlì.
He is not only smart but also hardworking.
Updated: 2026-05-27