| 信 |
xìn zhǐ | letter paper / writing paper |
| 信 |
xìn | letter / mail / CL:封 / to trust / to believe / to profess faith in / truthful / confidence / trust / at will / at random |
| 纸 |
zhǐ | variant of 纸 |
| 纸 |
zhǐ | paper (CL:张,沓) / classifier for documents, letters etc |