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Jyutping seon3
Pinyin xìn

Definitions (CC-CANTO)
  1. letter/mail M: 封fēng [封]/to trust/to believe/to profess faith in/truthful/confidence/trust/at will/at random

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Jyutping man1
Pinyin xìn

Definitions (CC-CEDICT)
  1. variant of 信[xin4] (originally meant as part of the second round of simplified Chinese characters)
Definitions (CC-CANTO)
  1. letter/mail M: 封fēng [封]/to trust/to believe/to profess faith in/truthful/confidence/trust/at will/at random
Definitions (Unihan)
  1. trust, believe
  2. letter
  3. (Cant.) small
  4. Cangjie Input
    OYK