阿舅 [－－]

Jyutping aa3 kau5
Pinyin ā jiù

Definitions (CC-CANTO)
  1. brother of one's wife
Definitions (粵典–words.hk)
  1. 名詞
    老婆​嘅​兄弟​（​大佬​同細​佬​）
    brothers-in-law (wife's brothers only)
Definitions (Wiktionary)
  1. noun, Cantonese, Wu
    brother-in-law (wife's brother)
  2. noun, Cantonese, Hakka, Mandarin, Min-Nan, Puxian-Min, Wu, dialectal
    maternal uncle (mother's brother)