| 1 | 适应 | 適應 | shì yìng | shi4 ying4 | to adapt; to fit; to suit | | |
| 2 | 适当 | 適當 | shì dàng | shi4 dang4 | suitable; appropriate | | |
| 3 | 适用 | 適用 | shì yòng | shi4 yong4 | to be applicable | | |
| 4 | 适合 | 適合 | shì hé | shi4 he2 | to fit; to suit | | |
| 5 | 适宜 | 適宜 | shì yí | shi4 yi2 | suitable; appropriate | | |
| 6 | 适应性 | 適應性 | shì yìng xìng | shi4 ying4 xing4 | adaptability; flexibility | | |
| 7 | 适 | 適 | shì | shi4 | to fit; suitable; proper; just (now); comfortable; well; to go; to follow or pursue; surname Shi | | |
| 8 | 适度 | 適度 | shì dù | shi4 du4 | moderately; appropriate | | |
| 9 | 适时 | 適時 | shì shí | shi4 shi2 | timely; apt to the occasion; in due course | | |
| 10 | 适量 | 適量 | shì liàng | shi4 liang4 | appropriate amount | | |
| 11 | 适航 | 適航 | shì háng | shi4 hang2 | to be airworthy; to be seaworthy | | |
| 12 | 适配器 | 適配器 | shì pèi qì | shi4 pei4 qi4 | adapter (device) | | |
| 13 | 适中 | 適中 | shì zhōng | shi4 zhong1 | moderate; reasonable; conveniently situated | | |
| 14 | 适切 | 適切 | shì qiè | shi4 qie4 | apt; appropriate | | |
| 15 | 适人 | 適人 | shì rén | shi4 ren2 | (said of a woman) to marry (old) | | |
| 16 | 适温 | 適溫 | shì wēn | shi4 wen1 | thermophile (e.g. bacteria); heat-loving | | |
| 17 | 适销 | 適銷 | shì xiāo | shi4 xiao1 | marketable; saleable; appropriate to the market | | |
| 18 | 适意 | 適意 | shì yì | shi4 yi4 | agreeable | | |
| 19 | 适应期 | 適應期 | shì yīng qī | shi4 ying1 qi1 | Adaptation period | | |
| 20 | 适于 | 適於 | shì yú | shi4 yu2 | Suitable for | | |
| 21 | 适者生存 | 適者生存 | shì zhě shēng cún | shi4 zhe3 sheng1 cun2 | survival of the fittest | | |
| 22 | 适值 | 適值 | shì zhí | shi4 zhi2 | just at that time; as it happens; by good luck, just then | | |
| 23 | 适格 | 適格 | shì gé | shi4 ge2 | to be qualified (to bring a complaint, lawsuit etc) (law) | | |
| 24 | 适才 | 適才 | shì cái | shi4 cai2 | just now; a moment ago | | |
| 25 | 适存度 | 適存度 | shì cún dù | shi4 cun2 du4 | fitness (evolution); ability to survive and reproduce | | |