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Jyutping zi6 dung6 mun4
Pinyin zì dòng mén

Definitions (Wiktionary)
  1. noun
    automatically opening door; automatic door
Examples (粵典–words.hk)
  1. Cantonese
    度自动门坏咗,你要自己拉开度门。
    度自動門壞咗,你要自己拉開度門。
    dou6 zi6 dung6 mun4 waai6 zo2, nei5 jiu3 zi6 gei2 laai1 hoi1 dou6 mun4.
    • The automatic door is out of order. You need to open the door yourself.