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Jyutping ngau3 nin4
Pinyin ōu nián

Definitions (粵典–words.hk)
  1. 動詞
    就​嚟​過​年​嗰​陣​不停​咁​落雨
    to rain continuously around the New Year

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Jyutping au3 nin4
Pinyin ōu nián

Definitions (CC-CANTO)
  1. the rainy season towards the end of the year