| sī | to think/to consider |
| 思 | to think to consider |
| 思之心痛 | a thought that causes heartache (idiom) |
| 思乡 | to be homesick |
| 思乡病 | homesick homesickness |
| 思亲 | to remember one's parents to feel homesick for one's relatives |
| 思凡 | long for the world; yearn for the company of the opposite sex |
| 思前想后 | to consider past cause and future effect (idiom); to think over the past and future to ponder over reasons and connection |
| 思南 | Sinan county in Tongren prefecture 銅仁地區|铜仁地区 |
| 思南县 | Sinan county in Tongren prefecture 銅仁地區|铜仁地区 |
| 思古 | To recall antiquity. |
| 思如泉涌 | ideas teeming in one's mind |
| 思忆 | to think of and remember; to recall |
| 思忖 | to ponder to reckon to turn sth over in one's mind |
| 思念 | think of long for miss |
| 思恋 | to miss to long for |
| 思情 | to miss to long for |
| 思惟 | cogitate |
| 思想 | thought thinking idea |
| 思想上的 | ideological |
| 思想交流 | exchange of ideas |