| 研究 | yan2 jiu1 | research |
| 研 | yan2 | study |
| 科研 | ke1 yan2 | research |
| 研究所 | yan2 jiu1 suo3 | graduate school |
| 项 | xiang4 | thing |
| 检索 | jian3 suo3 | retrieval |
| 研发 | yan2 fa1 | research and development |
| 研制 | yan2 zhi4 | to develop |
| 查 | cha2 | Chaco |
| 治 | zhi4 | to rule |
| 调研 | diao4 yan2 | investigation |
| 研究生 | yan2 jiu1 sheng1 | research student |
| 研究院 | yan2 jiu1 yuan4 | academy |