| xìn | letter/CL:封[feng1]/true/to believe/sign/evidence |
| 信 | letter to trust |
| 信不过 | bear watching |
| 信丰 | Xinfeng county in Ganzhou 贛州|赣州, Jiangxi |
| 信丰县 | Xinfeng county in Ganzhou 贛州|赣州, Jiangxi |
| 信义 | Xinyi or Hsinyi district of Taipei City 臺北市|台北市 |
| 信义乡 | Xinyi or Hsini township in Nantou county 南投縣|南投县 |
| 信义区 | Xinyi or Hsinyi district of Taipei City 臺北市|台北市 |
| 信从 | to trust and obey |
| 信令 | signaling (engineering) |
| 信以为真 | sumption; take on faith |
| 信仰 | to believe in (a religion) firm belief conviction |
| 信仰主义 | [Philosophy] fideism |
| 信仰疗法 | faith healing; faith cure; Scientology |
| 信仰者 | believer |
| 信仰自由 | freedom of faith (or belief); liberty of belief; toleration |
| 信件 | a letter (i.e. sent in the mail) |
| 信件品质打印机 | [Computer] letter-quality printer |
| 信任 |
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| 信任危机 | crisis of confidence |
| 信任差距 | a credibility gap |