| 1 | 吸收 | 吸收 | xī shōu | xi1 shou1 | to absorb; to assimilate; to ingest; to recruit | | |
| 2 | 吸引 | 吸引 | xī yǐn | xi1 yin3 | to attract (interest, investment etc); Classifiers: 个 | | |
| 3 | 吸 | 吸 | xī | xi1 | to breathe; to suck in; to absorb; to inhale | | |
| 4 | 吸附 | 吸附 | xī fù | xi1 fu4 | to adhere to a surface; to absorb; to draw in; (fig.) to attract; (chemistry) adsorption | | |
| 5 | 吸取 | 吸取 | xī qǔ | xi1 qu3 | to absorb; to draw (a lesson, insight etc); to assimilate | | |
| 6 | 吸引力 | 吸引力 | xī yǐn lì | xi1 yin3 li4 | attractive force (such as gravitation); sex appeal; attractiveness | | |
| 7 | 吸烟 | 吸煙 | xī yān | xi1 yan1 | to smoke | | |
| 8 | 吸入 | 吸入 | xī rù | xi1 ru4 | to breathe in; to suck in; to inhale | | |
| 9 | 吸水 | 吸水 | xī shuǐ | xi1 shui3 | absorbent | | |
| 10 | 吸奶器 | 吸奶器 | xī nǎi qì | xi1 nai3 qi4 | breast pump | | |
| 11 | 吸猫 | 吸貓 | xī māo | xi1 mao1 | (neologism c. 2017) to dote on cats | | |
| 12 | 吸粉 | 吸粉 | xī fěn | xi1 fen3 | to increase followers; to get more fans | | |
| 13 | 吸血乌贼 | 吸血烏賊 | xī xuè wū zéi | xi1 xue4 wu1 zei2 | vampire squid (Vampyroteuthis infernalis) | | |
| 14 | 吸奶 | 吸奶 | xī nǎi | xi1 nai3 | to suckle; to pump breast milk with a breast pump | | |
| 15 | 吸留 | 吸留 | xī liú | xi1 liu2 | to absorb; to take in and retain | | |
| 16 | 吸睛 | 吸睛 | xī jīng | xi1 jing1 | eye-catching | | |
| 17 | 吸门 | 吸門 | xī mén | xi1 men2 | epiglottis | | |
| 18 | 吸附洗消剂 | 吸附洗消劑 | xī fù xǐ xiāo jì | xi1 fu4 xi3 xiao1 ji4 | absorbing decontaminant | | |
| 19 | 吸进 | 吸進 | xī jìn | xi1 jin4 | to absorb completely; to drink up; to inhale; to breathe in | | |
| 20 | 吸附剂 | 吸附劑 | xī fù jì | xi1 fu4 ji4 | absorbent | | |
| 21 | 吸毒成瘾 | 吸毒成癮 | xī dú chéng yǐn | xi1 du2 cheng2 yin3 | drug addiction | | |
| 22 | 吸顶灯 | 吸頂燈 | xī dǐng dēng | xi1 ding3 deng1 | flush-mounted ceiling lamp (loanword) | | |
| 23 | 吸虫纲 | 吸蟲綱 | xī chóng gāng | xi1 chong2 gang1 | Class Trematoda; fluke; trematode worm, a parasite incl. on humans | | |
| 24 | 吸虫 | 吸蟲 | xī chóng | xi1 chong2 | trematoda; fluke; trematode worm, approx 6000 species, mostly parasite, incl. on humans | | |
| 25 | 吸着 | 吸著 | xī zhuó | xi1 zhuo2 | sorption (generic term for absorption, adsorption, diffusion, precipitation etc) | | |