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Jyutping sik1
Pinyin

Definitions (Unihan)
  1. to be familiar with
  2. a kind of medicine
  3. Cangjie Input
    IDP

怸 [-]

Jyutping
Pinyin

Definitions (CC-CEDICT)
  1. obscure variant of 悉[xi1]
  2. Achyranthes bidentata, a root used in Chinese medicine, equivalent to 牛膝[niu2 xi1]