洞口 [－－]

Jyutping dung6 hau2
Pinyin dòng kǒu

Definitions (CC-CEDICT)
  1. Dongkou county in Shaoyang 邵陽|邵阳[Shao4 yang2], Hunan
  2. cave mouth
  3. tunnel entrance
Definitions (Wiktionary)
  1. noun
    entrance to a cave
    (syn.) 空口
  2. name
    Dongkou County (a county of Hunan, China)