函谷關 [－－关]

Jyutping haam4 guk1 gwaan1
Pinyin hán gǔ guān

Definitions (CC-CEDICT)
  1. Hangu Pass in modern day Henan Province, strategic pass forming the eastern gate of the Qin State during the Warring States Period (770-221 BC)
Definitions (Wiktionary)
  1. name
    Hangu Pass