天塹 [－堑]

Jyutping tin1 cim3
Pinyin tiān qiàn

Definitions (CC-CANTO)
  1. natural moat
Definitions (Wiktionary)
  1. noun
    natural moat
  2. name
    Heavenly Barrier (in reference to the Yangtze)
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）