| 1 | 吸收 | 吸收 | xī shōu | xi1 shou1 | to absorb; to assimilate; to ingest; to recruit | | |
| 2 | 呼吸 | 呼吸 | hū xī | hu1 xi1 | to breathe | | |
| 3 | 吸引 | 吸引 | xī yǐn | xi1 yin3 | to attract (interest, investment etc); Classifiers: 个 | | |
| 4 | 吸 | 吸 | xī | xi1 | to breathe; to suck in; to absorb; to inhale | | |
| 5 | 吸附 | 吸附 | xī fù | xi1 fu4 | to adhere to a surface; to absorb; to draw in; (fig.) to attract; (chemistry) adsorption | | |
| 6 | 吸取 | 吸取 | xī qǔ | xi1 qu3 | to absorb; to draw (a lesson, insight etc); to assimilate | | |
| 7 | 吸引力 | 吸引力 | xī yǐn lì | xi1 yin3 li4 | attractive force (such as gravitation); sex appeal; attractiveness | | |
| 8 | 吸烟 | 吸煙 | xī yān | xi1 yan1 | to smoke | | |
| 9 | 吸入 | 吸入 | xī rù | xi1 ru4 | to breathe in; to suck in; to inhale | | |
| 10 | 吸水 | 吸水 | xī shuǐ | xi1 shui3 | absorbent | | |
| 11 | 呼吸道 | 呼吸道 | hū xī dào | hu1 xi1 dao4 | respiratory tract | | |
| 12 | 吸奶器 | 吸奶器 | xī nǎi qì | xi1 nai3 qi4 | breast pump | | |
| 13 | 吸粉 | 吸粉 | xī fěn | xi1 fen3 | to increase followers; to get more fans | | |
| 14 | 中东呼吸综合征 | 中東呼吸綜合徵 | zhōng dōng hū xī zōng hé zhèng | Zhong1 dong1 hu1 xi1 zong1 he2 zheng4 | Middle East respiratory syndrome (MERS) | | |
| 15 | 吸奶 | 吸奶 | xī nǎi | xi1 nai3 | to suckle; to pump breast milk with a breast pump | | |
| 16 | 吸猫 | 吸貓 | xī māo | xi1 mao1 | (neologism c. 2017) to dote on cats | | |
| 17 | 吸血乌贼 | 吸血烏賊 | xī xuè wū zéi | xi1 xue4 wu1 zei2 | vampire squid (Vampyroteuthis infernalis) | | |
| 18 | 虹吸 | 虹吸 | hóng xī | hong2 xi1 | siphon | | |
| 19 | 肝吸虫 | 肝吸蟲 | gān xī chóng | gan1 xi1 chong2 | liver fluke | | |
| 20 | 复殖吸虫 | 複殖吸蟲 | fù zhí xī chóng | fu4 zhi2 xi1 chong2 | digenetic trematode worm (i.e. from Order Digenea 复殖目 ) | | |
| 21 | 地心吸力 | 地心吸力 | dì xīn xī lì | di4 xin1 xi1 li4 | gravitation | | |
| 22 | 倒吸一口凉气 | 倒吸一口涼氣 | dào xī yī kǒu liáng qì | dao4 xi1 yi1 kou3 liang2 qi4 | to gasp (with amazement or shock etc); to feel a chill run down one's spine; to have one's hairs stand on end | | |
| 23 | 静脉吸毒 | 靜脈吸毒 | jìng mài xī dú | jing4 mai4 xi1 du2 | intravenous drug; IV drug | | |
| 24 | 口吸盘 | 口吸盤 | kǒu xī pán | kou3 xi1 pan2 | oral sucker (e.g. on bloodsucking parasite) | | |
| 25 | 裂体吸虫 | 裂體吸蟲 | liè tǐ xī chóng | lie4 ti3 xi1 chong2 | schistosome, parasitic flatworm causing snail fever (bilharzia or schistosomiasis) | | |