| 不知去向 | bu4 zhi1 qu4 xiang4 | gone missing |
| 不知死活 | bu4 zhi1 si3 huo2 | act recklessly |
| 知觉力 | zhi1 jue2 li4 zhi1 jiao4 li4 | sentience |
| 自知之明 | zi4 zhi1 zhi1 ming2 | self-knowledge |
| 不知何故 | bu4 zhi1 he2 gu4 | somehow |
| 不知凡几 | bu4 zhi1 fan2 ji3 | one can't tell how many |
| 不知天高地厚 | bu4 zhi1 tian1 gao1 di4 hou4 | an exaggerated opinion of one's own abilities |
| 不知好歹 | bu4 zhi1 hao3 dai3 | not know whats good for one |
| 前向拥塞通知 | qian2 xiang4 yong1 sai1 tong1 qian2 xiang4 yong1 sai1 tong1 qian2 xiang4 yong1 | Forward Explicit Congestion Notification |
| 同知 | tong2 zhi1 | government sub-prefect (old) |
| 广播和未知服务器 | guang3 bo1 he2 wei4 zhi1 fu2 wu4 qi4 guang3 bo1 he2 wei4 zhi1 fu2 wu4 qi4 guan | Broadcast and Unknown Server |
| 技术知识 | ji4 shu4 zhi1 shi5 | technical knowledge |
| 知识工程师 | zhi1 shi4 gong1 cheng2 shi1 | knowledge worker |