| 开始 | kāi shǐ | to begin; beginning; to start; initial; Classifiers: 个 | |
| 离开 | lí kāi | to depart; to leave | |
| 开发 | kāi fā | to exploit (a resource); to open up (for development); to develop | |
| 开展 | kāi zhǎn | to launch; to develop; to unfold; (of an exhibition etc) to open | |
| 开放 | kāi fàng | to bloom; to open; to be open (to the public); to open up (to the outside); to be open-minded; unrestrained by convention; unconstrained in one's sexuality |
| 1 | The water is boiling. | |
| 2 | When does the train start? | |
| 3 | What time does the train leave? | |
| 4 | The school bus is about to start. | |
| 5 | He has opened a restaurant. |
