| 斯 | sī | (phonetic); this; Slovakia; Slovak; abbr. for 斯洛伐克 |
| 恩格斯 | Ēn gé sī | Friedrich Engels (1820-1895), socialist philosopher and one of the founder of Marxism |
| 巴勒斯坦 | Bā lè sī tǎn | Palestine |
| 莫斯科 | Mò sī kē | Moscow, capital of Russia |
| 斯大林 | Sī dà lín | Joseph Stalin (1879-1953), Soviet dictator |
| 巴基斯坦 | Bā jī sī tǎn | Pakistan |
| 法西斯 | fǎ xī sī | fascist (loanword) |
| 南斯拉夫 | Nán sī lā fū | Yugoslavia, 1943-1992 |
| 捷克斯洛伐克 | Jié kè Sī luò fá kè | Republic of Czechoslovakia (1918-1992) |
| 波斯 | Bō sī | Persia |
| 穆斯林 | mù sī lín | Muslim |
| 突尼斯 | Tū ní sī | Tunisia; Tunis, capital of Tunisia |
| 塔斯社 | Tǎ sī shè | TASS; Information Telegraph Agency of Russia |
| 斯里兰卡 | Sī lǐ lán kǎ | Sri Lanka; (formerly) Ceylon |
| 罗斯 | Luó sī | Roth (name); Kenneth Roth (1955-), executive director of Human Rights Watch 人权观察 |
| 瓦斯 | wǎ sī | gas |
| 伊斯兰教 | yī sī lán jiào | Islam |
| 史密斯 | Shǐ mì sī | Smith (name) |
| 喀斯特 | kā sī tè | karst (loanword); weathered limestone often forming caves |
| 伊斯兰堡 | Yī sī lán bǎo | Islamabad, capital of Pakistan |
| 李斯 | Lǐ Sī | Li Si (c. 280-208 BC), Legalist philosopher, calligrapher and Prime minister of Qin kingdom and Qin dynasty from 246 to 208 BC |
| 波斯湾 | Bō sī Wān | Persian Gulf |
| 布加勒斯特 | Bù jiā lè sī tè | Bucharest, capital of Romania |
| 法西斯主义 | fǎ xī sī zhǔ yì | fascism |
| 托尔斯泰 | Tuō ěr sī tài | Tolstoy (name); Count Lev Nikolayevich Tostoy (1828-1910), great Russian novelist, author of War and Peace 战争与和平 |
| 威尼斯 | Wēi ní sī | Venice; Venezia |
| 车尔尼雪夫斯基 | Chē ěr ní xuě fū sī jī | Nikolai Chernyshevsky |
| 塞浦路斯 | Sài pǔ lù sī | Cyprus |
| 爱因斯坦 | Ài yīn sī tǎn | Albert Einstein (1879-1955), famous Austrian physicist |
| 斯坦福 | Sī tǎn fú | Stanford (University) |
| 麦克斯韦 | Mài kè sī wéi | Maxwell (name); James Clerk Maxwell (1831-1879), Scottish physicist and mathematician, the originator of Maxwell's laws of electromagnetism and electromagnetic waves |
| 马达加斯加 | Mǎ dá jiā sī jiā | Madagascar |
| 高斯 | Gāo sī | Carl Friedrich Gauss (1777-1855), German mathematician; Gauss, unit of magnetic induction |
| 特斯拉 | Tè sī lā | Tesla (unit); Nikola Tesla (1856-1943), Serbian inventor and engineer |
| 布达佩斯 | Bù dá pèi sī | Budapest, capital of Hungary |
| 加拉加斯 | Jiā lā jiā sī | Caracas, capital of Venezuela |
| 尼斯 | Ní sī | Nice (city in France) |
| 布宜诺斯艾利斯 | Bù yí nuò sī Ài lì sī | Buenos Aires, capital of Argentina |
| 霍布斯 | Huò bù sī | Hobbs (name) |
| 劳伦斯 | Láo lún sī | Lawrence (person name) |
| 白俄罗斯 | Bái é luó sī | Belarus; Byelorussia; White Russia |
| 拉各斯 | Lā gè sī | Lagos (Nigerian city) |
| 罗斯托夫 | Luó sī tuō fū | Rostov-on-Don, Russian river port and regional capital close to Sea of Azov (north of the Black Sea) |
| 哥斯达黎加 | Gē sī dá Lí jiā | Costa Rica |
| 托马斯 | Tuō mǎ sī | Thomas (male name) |
| 斯德哥尔摩 | Sī dé gē ěr mó | Stockholm, capital of Sweden |
| 斯文 | sī wén | refined; educate; cultured; intellectual; polite; gentle |
| 斯文 | sī wen | refined; educate; cultured; intellectual; polite; gentle |
| 路易斯 | Lù yì sī | Louis or Lewis (name) |
| 安第斯山脉 | Ān dì sī shān mài | Andes mountain chain of South America |
