| 1 | 探索 | 探索 | tàn suǒ | tan4 suo3 | to explore; to probe | | |
| 2 | 思索 | 思索 | sī suǒ | si1 suo3 | to think deeply; to ponder | | |
| 3 | 线索 | 線索 | xiàn suǒ | xian4 suo3 | trail; clues; thread (of a story) | | |
| 4 | 索 | 索 | suǒ | Suo3 | to search; to demand; to ask; to exact; large rope; isolated; surname Suo; abbr. for 索马里 , Somalia | | |
| 5 | 索性 | 索性 | suǒ xìng | suo3 xing4 | you might as well (do it); simply; just | | |
| 6 | 搜索 | 搜索 | sōu suǒ | sou1 suo3 | to search (a place); to search (a database etc) | | |
| 7 | 索马里 | 索馬裡 | suǒ mǎ lǐ | Suo3 ma3 li3 | variant of 索馬里 |索马里 [Suo3 ma3 li3]; Somalia; ; Somalia; variant of 索马里 ; Somalia | | |
| 8 | 检索 | 檢索 | jiǎn suǒ | jian3 suo3 | to retrieve (data); to look up; retrieval; search | | |
| 9 | 绳索 | 繩索 | shéng suǒ | sheng2 suo3 | rope | | |
| 10 | 索取 | 索取 | suǒ qǔ | suo3 qu3 | to ask; to demand | | |
| 11 | 滑索 | 滑索 | huá suǒ | hua2 suo3 | zip line | | |
| 12 | 飞索 | 飛索 | fēi suǒ | fei1 suo3 | zip line | | |
| 13 | 精索静脉曲张 | 精索靜脈曲張 | jīng suǒ jìng mài qū zhāng | jing1 suo3 jing4 mai4 qu1 zhang1 | varicocele (medicine) | | |
| 14 | 瑟索 | 瑟索 | sè suǒ | se4 suo3 | to shiver; to tremble | | |
| 15 | 精索 | 精索 | jīng suǒ | jing1 suo3 | spermatic cord (anatomy) | | |
| 16 | 南高加索 | 南高加索 | nán gāo jiā suǒ | Nan2 Gao1 jia1 suo3 | Transcaucasia, aka the South Caucasus | | |
| 17 | 悉悉索索 | 悉悉索索 | xī xī suǒ suǒ | xi1 xi1 suo3 suo3 | (onom.) rustling sound (of clothing, leaves, snow etc); faint noises | | |
| 18 | 高加索山脉 | 高加索山脈 | gāo jiā suǒ shān mài | Gao1 jia1 suo3 Shan1 mai4 | Caucasus Mountains | | |
| 19 | 走索 | 走索 | zǒu suǒ | zou3 suo3 | tightrope walking | | |
| 20 | 承索即寄 | 承索即寄 | chéng suǒ jí jì | cheng2 suo3 ji2 ji4 | will be mailed free on request (idiom) | | |
| 21 | 布拉索夫 | 布拉索夫 | bù lā suǒ fū | Bu4 la1 suo3 fu1 | Braşov, Romania | | |
| 22 | 不假思索 | 不假思索 | bù jiǎ sī suǒ | bu4 jia3 si1 suo3 | to act without taking time to think (idiom); to react instantly; to fire from the hip | | |
| 23 | 不加思索 | 不加思索 | bù jiā sī suǒ | bu4 jia1 si1 suo3 | see 不假思索 | | |
| 24 | 比索 | 比索 | bǐ suǒ | Bi3 suo3 | peso (currency in Latin America) (loanword); Bissau, capital of Guinea-Bissau (Tw) | | |
| 25 | 鲍里索夫 | 鮑裏索夫 | bào lǐ suǒ fū | Bao4 li3 suo3 fu1 | Borisov | | |