口外 [－－]

Jyutping hau2 ngoi6
Pinyin kǒu wài

Definitions (Wiktionary)
  1. noun
    area beyond the Great Wall (i.e. beyond Zhangjiakou, northern Hebei province, and Inner Mongolia)
    (syn.) 口北
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）