| 1 | 空 | 空 | kòng | kong4 | to empty; vacant; unoccupied; space; leisure; free time | | |
| 2 | 空白 | 空白 | kòng bái | kong4 bai2 | blank space | | |
| 3 | 空隙 | 空隙 | kòng xì | kong4 xi4 | crack; gap between two objects; gap in time between two events | | |
| 4 | 空地 | 空地 | kòng dì | kong4 di4 | vacant land; open space | | |
| 5 | 空白支票 | 空白支票 | kòng bái zhī piào | kong4 bai2 zhi1 piao4 | blank check | | |
| 6 | 空子 | 空子 | kòng zi | kong4 zi5 | gap; unoccupied space or time; fig. gap; loophole | | |
| 7 | 空心 | 空心 | kòng xīn | kong4 xin1 | on an empty stomach | | |
| 8 | 空闲 | 空閒 | kòng xián | kong4 xian2 | idle; free time; leisure; unused (place) | | |
| 9 | 空暇 | 空暇 | kòng xiá | kong4 xia2 | idle; free time; leisure | | |
| 10 | 空天 | 空天 | kòng tiān | kong4 tian1 | Sky | | |
| 11 | 空日 | 空日 | kòng rì | kong4 ri4 | day that is named but not numbered (on ethnic calendar) | | |
| 12 | 空人 | 空人 | kòng rén | kong4 ren2 | Empty people | | |
| 13 | 空儿 | 空兒 | kòng r | kong4 r5 | spare time; free time | | |
| 14 | 空缺 | 空缺 | kòng quē | kong4 que1 | vacancy | | |
| 15 | 空气质量 | 空氣質量 | kòng qì zhì liáng | kong4 qi4 zhi4 liang2 | Air quality | | |
| 16 | 空气清新 | 空氣清新 | kòng qì qīng xīn | kong4 qi4 qing1 xin1 | The air is fresh | | |
| 17 | 空匮 | 空匱 | kòng kuì | kong4 kui4 | scarce; poor | | |
| 18 | 空欢喜 | 空歡喜 | kòng huān xǐ | kong4 huan1 xi3 | Empty joy remains | | |
| 19 | 空格键 | 空格鍵 | kòng gé jiàn | kong4 ge2 jian4 | space bar (keyboard) | | |
| 20 | 空格 | 空格 | kòng gé | kong4 ge2 | blank; blank space on a form; space; 囗 (indicating missing or illegible character) | | |
| 21 | 空房子 | 空房子 | kòng fáng zǐ | kong4 fang2 zi3 | Empty houses | | |
| 22 | 空额 | 空額 | kòng é | kong4 e2 | vacancy; unfilled work place | | |
| 23 | 空地导弹 | 空地導彈 | kòng dì dǎo dàn | kong4 di4 dao3 dan4 | air-to-surface missile | | |
| 24 | 空档 | 空檔 | kòng dàng | kong4 dang4 | gap (between two objects); interval of time (between events); opening in one's schedule; free time; (fig.) gap (in the market etc) | | |
| 25 | 空当 | 空當 | kòng dāng | kong4 dang1 | gap; interval | | |