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Jyutping aa3 maa5
Pinyin ā mǎ

Definitions (Wiktionary)
  1. name
    Armagh

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Jyutping aa3 maa5
Pinyin ā1ma

Definitions (CC-CANTO)
  1. Armagh, a place in Northen Ireland [written and colloquial]; an alternative form to阿媽, mom, grandma, amah (an older female servant) [colloquial]