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Jyutping gu3 gaau1
Pinyin gù jiāo

Definitions (CC-CEDICT)
  1. former acquaintance
  2. old friend
Definitions (Wiktionary)
  1. noun, literary
    old friend
    (syn.) 故舊, 老相识, 故人, 舊友, 舊交, 老朋友, 旧知, 老相識, 故知, 老盆友, 故友, 以前的朋友, 舊故, 旧交, 故旧, 老朋, 旧故, 舊知, 旧友
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)