| 侦查 | zhēn chá | to detect; to investigate | |
| 侦察 | zhēn chá | to investigate a crime; to scout; to reconnoiter; reconnaissance; detection; a scout | |
| 侦破 | zhēn pò | to investigate (as detective); to solve (crime); to uncover (a plot); to sniff out; to break in and analyze; detective work; to scout | |
| 侦探HSK 6 | zhēn tàn | detective; to do detective work | |
| 侦察机 | zhēn chá jī | surveillance aircraft; spy plane |