| 洞穴 | dòng xué | cave; cavern | |
| 太阳穴 | tài yáng xué | temple (on the sides of human head) | |
| 巢穴HSK 6 | cháo xué | lair; nest; den; hideout | |
| 墓穴 | mù xué | tomb; grave | |
| 穴位 | xué wèi | acupuncture point |
| 1 | There are many caves in the deep forests. | |
| 2 | This is her octopus "den. | |
| 3 | We entered a damp cave with slippery ground and had to walk carefully. |