西北 (Xī běi) means “Northwest China (Shaanxi, Gansu, Qinghai, Ningxia, Xinjiang)”. It is an HSK 2 Chinese word in the HSK 3.0 vocabulary.
Practice each character:
西北的冬天很冷。
Xīběi de dōngtiān hěn lěng.
Winters in the northwest are very cold.
Updated: 2026-07-18