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Jyutping suk1 po4
Pinyin shú pó

Definitions (Wiktionary)
  1. noun
    aunt; aunt-in-law (husband's father's younger brother's wife)
  2. noun, Cantonese, Gan, Hakka, Sichuanese, dialectal, including
    great-aunt (wife of paternal grandfather's younger brother)
  3. noun
    paternal aunt (father's younger brother's wife)
    (syn.) 叔外婆, 叔祖母, 婶妈, 嬸婆, 嬸媽, 婶婆, 叔娭毑

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Jyutping suk1 po4
Pinyin shū pó

Definitions (CC-CEDICT)
  1. aunt by marriage
  2. husband's aunt
  3. husband's father's younger brother's wife
Definitions (粵典–words.hk)
  1. 名詞
    叔公​嘅​老婆​;​阿爸​或者​阿​媽​嘅​阿​嬸
    grand-aunt; great-aunt; wife of the younger brother of one's father or mother
Definitions (Wiktionary)
  1. noun
    aunt; aunt-in-law (husband's father's younger brother's wife)
  2. noun, Cantonese, Gan, Hakka, Sichuanese, dialectal, including
    great-aunt (wife of paternal grandfather's younger brother)
  3. noun
    paternal aunt (father's younger brother's wife)
    (syn.) 叔外婆, 叔祖母, 婶妈, 嬸婆, 嬸媽, 婶婆, 叔娭毑
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
  2. 叔祖母