| 深入 | shēn rù | to penetrate deeply; thorough | |
| 深刻HSK 5 | shēn kè | profound; deep; deep-going | |
| 深深HSK 4 | shēn shēn | deep; profound | |
| 深化 | shēn huà | to deepen; to intensify | |
| 深厚HSK 4 | shēn hòu | deep; profound |
| 1 | The water in the lake is very deep. | |
| 2 | He was lost in thought. | |
| 3 | This hole looks very deep. | |
| 4 | This issue requires in-depth research. | |
| 5 | It's late at night, everyone has gone home. |