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Jyutping sing1 sik1
Pinyin shēng xí

Definitions (Wiktionary)
  1. noun
    information
  2. noun
    sound; noise (usually used in the negative)

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Jyutping sing1 sik1
Pinyin shēng xī

Definitions (CC-CEDICT)
  1. sound (often with negative, not a sound)
  2. whisper
Definitions (Wiktionary)
  1. noun
    information
  2. noun
    sound; noise (usually used in the negative)