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Jyutping sau1
Pinyin sōu

Definitions (Wiktionary)
  1. character
    to wash (rice)
  2. character
    human excretion, particularly urine
  3. character
    to soak
Definitions (Unihan)
  1. urinate
  2. soak, drench
  3. Cangjie Input
    ESQF

溲 [-]

Jyutping
Pinyin sōu

Definitions (CC-CEDICT)
  1. to urinate