| 1 | 侦察 | 偵察 | zhēn chá | zhen1 cha2 | to detect; to investigate; to investigate a crime; to scout; to reconnoiter; reconnaissance; detection; a scout | | |
| 2 | 侦探 | 偵探 | zhēn tàn | zhen1 tan4 | detective; to do detective work | | |
| 3 | 侦察员 | 偵察員 | zhēn chá yuán | zhen1 cha2 yuan2 | detective; investigator; scout; spy | | |
| 4 | 侦 | 偵 | zhēn | zhen1 | to scout; to spy; to detect | | |
| 5 | 侦办 | 偵辦 | zhēn bàn | zhen1 ban4 | to investigate (a crime) and prosecute | | |
| 6 | 侦测 | 偵測 | zhēn cè | zhen1 ce4 | to detect; to sense | | |
| 7 | 侦测器 | 偵測器 | zhēn cè qì | zhen1 ce4 qi4 | detector | | |
| 8 | 侦察兵 | 偵察兵 | zhēn chá bīng | zhen1 cha2 bing1 | a scout; spy | | |
| 9 | 侦察机 | 偵察機 | zhēn chá jī | zhen1 cha2 ji1 | surveillance aircraft; spy plane | | |
| 10 | 侦察性 | 偵察性 | zhēn chá xìng | zhen1 cha2 xing4 | investigatory | | |
| 11 | 侦毒管 | 偵毒管 | zhēn dú guǎn | zhen1 du2 guan3 | detector tube | | |
| 12 | 侦毒器 | 偵毒器 | zhēn dú qì | zhen1 du2 qi4 | detection unit | | |
| 13 | 侦缉 | 偵緝 | zhēn jī | zhen1 ji1 | to track down; to investigate and arrest | | |
| 14 | 侦破 | 偵破 | zhēn pò | zhen1 po4 | to investigate (as detective); to solve (crime); to uncover (a plot); to sniff out; to break in and analyze; detective work; to scout | | |
| 15 | 侦听 | 偵聽 | zhēn tīng | zhen1 ting1 | to eavesdrop; to tap (telephone conversations); to intercept and investigate | | |
| 16 | 侦讯 | 偵訊 | zhēn xùn | zhen1 xun4 | to interrogate during investigation | | |