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Jyutping can1 gaau1
Pinyin qīn jiāo

Definitions (Wiktionary)
  1. noun, literary
    close friend
  2. noun, literary
    intimate friendship
Examples (粵典–words.hk)
  1. Cantonese
    佢哋闹亲交,下下都话要离婚,我都听到惯喇。
    佢哋鬧親交,下下都話要離婚,我都聽到慣喇。
    keoi5 dei6 naau6 can1 gaau1, haa5 haa5 dou1 waa6 jiu3 lei4 fan1, ngo5 dou1 teng1 dou3 gwaan3 laa3.
    • When they argue, they always talk about getting divorced. I've gotten used to hearing it.