| 茅塞顿开 | máo sè dùn kāi | murky darkness suddenly opens (idiom); a sudden flash of insight and all is clear |
| 蒙特塞拉特 | Méng tè sāi lā tè | Montserrat |
| 萨默塞特郡 | Sà mò sāi tè jùn | Somerset county in southwest England |
| 血塞 | xuè sè | blood obstruction |
| 西塞山 | Xī sài shān | Xisaishan district of Huangshi city 黄石市, Hubei |
| 西塞山区 | Xī sài shān qū | Xisaishan district of Huangshi city 黄石市, Hubei |
| 西塞罗 | Xī sāi luó | Marcus Tullius Cicero (106-43 BC), famous Roman politician, orator and philosopher, murdered at the orders of Marc Anthony |
| 诺塞斯 | nuò sāi sī | Knossos (Minoan palace at Iraklion, Crete) |
| 豺狼塞路 | chái láng sāi lù | ravenous wolves block the road (idiom); wicked people in power; a vicious tyranny rules the land |
| 赫塞哥维纳 | Hè sè gē wéi nà | Herzegovina (Taiwanese transliteration) |
路易・皮埃尔・阿
尔都塞 | Lù yì · Pí āi ěr · Ā ěr dōu sāi | Louis Pierre Althusser (1918-1990), Marxist philosopher |
| 逆向拥塞通知 | nì xiàng yōng sāi tōng zhī | Backward Explicit Congestion Notification; BECN |
| 边塞 | biān sài | frontier fortress |
| 闭塞眼睛捉麻雀 | bì sè yǎn jīng zhuō má què | lit. to catch sparrows blindfolded; to act blindly |
| 闭目塞听 | bì mù sè tīng | to shut one's eyes and stop one's ears; out of touch with reality; to bury one's head in the sand |
| 闭门塞窦 | bì mén sè dòu | to close doors and block openings (idiom); mounting a strict defense |
| 关塞 | guān sài | border fort, esp. defending narrow valley |
| 阻塞 | zǔ sè | to block; to clog |
阿克塞哈萨克族自
治县 | Ā kè sài Hā sà kè zú zì zhì xiàn | Aksai Kazakh autonomous county in Jiuquan 酒泉, Gansu |
| 阿克塞县 | Ā kè sài xiàn | Aksai Kazakh autonomous county in Jiuquan 酒泉, Gansu |
| 阿塞拜疆 | Ā sài bài jiāng | Azerbaijan, former Soviet Republic and region of northwest Iran in Caucasus |
| 阿塞拜疆人 | Ā sài bài jiāng rén | Azerbaijan (person) |
| 阿尔瓦塞特 | Ā ěr wǎ sè tè | Albacete, Spain |
| 阿尔都塞 | Ā ěr dōu sāi | surname Althusser; Louis Pierre Althusser 路易・皮埃尔・阿尔都塞[Lu4 yi4 · Pi2 ai1 er3 · A1 er3 dou1 sai1] (1918-1990), Marxist philosopher |
| 马塞卢 | Mǎ sài lú | Maseru, capital of Lesotho |
| 马萨诸塞 | Mǎ sà zhū sài | Massachusetts, US state |
| 马萨诸塞州 | Mǎ sà zhū sài zhōu | Massachusetts, US state |
| 黑塞哥维那 | Hēi sè gē wéi nà | Herzegovena |
| 鼻塞 | bí sè | a blocked nose |
