| 侦察 | zhen1 cha2 | to reconnoiter |
| 普查 | pu3 cha2 | census |
| 勘察 | kan1 cha2 | to survey |
| 搜察 | sou1 cha2 | reconnaissance |
| 勘察队 | kan1 cha2 dui4 | reconnaissance |
| 军事侦察 | jun1 shi4 zhen1 cha2 | military reconnaissance |
| 美国国家侦察局 | mei3 guo2 guo2 jia1 zhen1 cha2 ju2 | National Reconnaissance Office (of the United States) |