所以
suóyǐ
so; therefore
Every meaning
suǒyǐ
- so; therefore
- reason; why (as in 所以然)
Its characters
Words with 所
Words with 以
Meanings are from Mandarin The Wild’s own dictionary. Levels follow the official HSK word list (the exam’s 2025 syllabus, levels 7–9 shown together).