Search the dictionary A Chinese word or character, or English Draw a character Search 2 entries. hángǔguān 函谷关 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) hángǔguān 函谷關 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)