| 索 | suǒ | to search; to demand; to ask; to exact; large rope; isolated; surname Suo; abbr. for 索马里, Somalia |
| 探索 | tàn suǒ | to explore; to probe; commonly used in names of publications or documentaries |
| 思索 | sī suǒ | think deeply; ponder |
| 吊索 | diào suǒ | rope tackle hanging from a mast; crow foot (system of ropes through tackle to hold up an awning) |
| 摸索 | mō suo | to feel about; to grope about; to fumble; to do things slowly |
| 索马里 | Suǒ mǎ lǐ | Somalia; omalia |
| 线索 | xiàn suǒ | trail; clues; thread (of a story) |
| 绳索 | shéng suǒ | rope |
| 勒索 | lè suǒ | to blackmail; to extort |
| 索性 | suǒ xìng | you might as well (do it); simply; just |
| 搜索 | sōu suǒ | to search; to look for sth; to scour (search meticulously); to look sth up; internet search; database search |
| 索取 | suǒ qǔ | to ask; to demand |
| 脊索 | jǐ suǒ | notochord (internal skeletal rod in primitive fish) |
| 索赔 | suǒ péi | to ask for compensation; to claim damages; claim for damages |
| 高加索 | Gāo jiā suǒ | Caucasus; Caucasian (people) |
| 索引 | suǒ yǐn | index |
| 索道 | suǒ dào | ropeway |
| 墨索里尼 | Mò suǒ lǐ ní | Benito Mussolini (1883-1945), Italian fascist dictator, "Il Duce", president 1922-1943 |
| 索非亚 | Suǒ fēi yà | Sofia, capital of Bulgaria |
| 导火索 | dǎo huǒ suǒ | a fuse (for explosive) |
| 三索锦蛇 | sān suǒ jǐn shé | copperhead race (Elaphe radiata), kind of snake |
| 不假思索 | bù jiǎ sī suǒ | to act without taking time to think (idiom); to react instantly; to fire from the hip |
| 不加思索 | bù jiā sī suǒ | see 不假思索 |
| 人肉搜索 | rén ròu sōu suǒ | human flesh search; a large-scale collective effort to find details about a person or event (Internet slang); see 人肉搜索引擎 |
| 人肉搜索引擎 | rén ròu sōu suǒ yǐn qíng | human flesh search engine; a large-scale collective effort to find details about a person or event (Internet slang) |
| 伊索 | Yī suǒ | Aesop (trad. 620-560 BC), Greek slave and story-teller, reported author of Aesop's fables |
| 全文检索 | quán wén jiǎn suǒ | full text search |
| 冥思苦索 | míng sī kǔ suǒ | to rack one’s innermost brains (idiom) |
| 利马索尔 | Lì mǎ suǒ ěr | Limassol, Cyprus; Lemesos |
| 勒索罪 | lè suǒ zuì | blackmail |
| 乔治・索罗斯 | Qiáo zhì · Suǒ luó sī | George Soros or György Schwartz (1930-), Hungarian American financial speculator and millionaire philanthropist |
| 垂直搜索 | chuí zhí sōu suǒ | vertical search; semantic search; top-down search |
| 埃尔帕索 | Āi ěr pà suǒ | El Paso (Texas) |
| 外高加索 | Wài Gāo jiā suǒ | South Caucasus |
| 太空探索 | tài kōng tàn suǒ | space exploration |
| 套索 | tào suǒ | a lasso; noose |
| 布基纳法索 | Bù jī nà fǎ suǒ | Burkina Faso, West Africa |
| 布拉索夫 | Bù lā suǒ fū | Braşov, Romania |
| 悬索桥 | xuán suǒ qiáo | suspension bridge |
| 披索 | pī suǒ | Peso (currency in Lat. Amer.); also written 比索 |
| 拖牵索道 | tuō qiān suǒ dào | anchor lift (ski-lift) |
| 按图索骥 | àn tú suǒ jì | lit. looking for a fine horse using only a picture (idiom); to do things along rigid, conventional lines; to try and find smth with the help of a clue |
| 探索性 | tàn suǒ xìng | exploratory |
| 推索 | tuī suǒ | to inquire into; to ascertain |
| 搜索引擎 | sōu suǒ yǐn qíng | Internet search engine |
| 搜索枯肠 | sōu suǒ kū cháng | to search dry guts (idiom); to racks one's brains for a good wording (of a poet) |
| 敲诈勒索罪 | qiāo zhà lè suǒ zuì | extortion and blackmail |
| 明显的句法线索 | míng xiǎn de jù fǎ xiàn suǒ | explicit syntactic cue |
| 架空索道 | jià kōng suǒ dào | aerial ropeway; cable car |
| 检索 | jiǎn suǒ | to retrieve (data); to look up; retrieval; search |
