| 洞 |
Dòng kǒu | Dongkou county in Shaoyang 邵阳, Hunan |
| 洞 |
dòng kǒu | cave mouth / tunnel entrance |
| 洞 |
dòng | cave / hole / zero (unambiguous spoken form when spelling out numbers) / CL:个 |
| 洞 |
tóng | used in 洪洞, a county in Shanxi |
| 口 |
kǒu | mouth / classifier for things with mouths (people, domestic animals, cannons, wells etc) / classifier for bites or mouthfuls |