| 地 |
dì dòng | tunnel; cave; burrow; dugout |
| 地 |
de | -ly / structural particle: used before a verb or adjective, linking it to preceding modifying adverbial adjunct |
| 地 |
dì | earth / ground / field / place / land / CL:片 |
| 洞 |
dòng | cave / hole / zero (unambiguous spoken form when spelling out numbers) / CL:个 |
| 洞 |
tóng | used in 洪洞, a county in Shanxi |