| 限制 | xian4 zhi4 | to confine |
| 保险 | bao3 xian3 | safe |
| 界 | jie4 | group |
| 际 | ji4 | time |
| 无限 | wu2 xian4 | unlimited |
| 篇 | pian1 | sheet |
| 边界 | bian1 jie4 | boundary |
| 边 | bian1 bian5 | side |
| 往 | wang3 wang3 | past |
| 无穷 | wu2 qiong2 | endless |
| 界限 | jie4 xian4 | boundary |
| 极限 | ji2 xian4 | extreme boundary |
| 限 | xian4 | bound |