| 矽 | [ xī ] (Tw) silicon (chemistry), Taiwan pr. [xi4] |
| 矽利康 | [ xī lì kāng ] (Tw) silicone (loanword) |
| 矽晶片 | [ xī jīng piàn ] silicon chip, also written 硅晶片[gui1 jing1 pian4] |
| 矽末病 | [ xī mò bìng ] silicosis (occupational disease of miners), grinder's disease, also written 矽末病 |
| 矽橡膠 | [ xī xiàng ] (Tw) silicone rubber |
| 矽片 | [ xī piàn ] silicon chip, also written 硅片[gui1 pian4] |
| 矽肺 | [ xī feì ] silicosis (occupational disease of miners), grinder's disease |
| 矽肺病 | [ xī feì bìng ] silicosis (occupational disease of miners), grinder's disease |
| 矽膠 | [ xī ] (Tw) silica gel, silicone rubber |
| 矽藻 | [ xī zaǒ ] diatom |
| 矽谷 | [ xī gǔ ] Silicon Valley |
| 矽鋁層 | [ xī lǚ céng ] Sial |
| 矽鎂層 | [ xī meǐ céng ] sima (geology), silicon and magnesium layer in earth's crust |