| 到底HSK 4 | dào dǐ | finally; in the end; when all is said and done; after all; to the end; to the last | |
| 彻底HSK 5 | chè dǐ | thorough; thoroughly; complete | |
| 年底HSK 4 | nián dǐ | the end of the year; year-end | |
| 底下HSK 4 | dǐ xia | the location below sth; afterwards | |
| 海底 | hǎi dǐ | seabed; seafloor; bottom of the ocean |
| 1 | The river water is clear enough to see the bottom. | |
| 2 | The bottom of the glass broke. | |
| 3 | The stones at the bottom of the well are slippery. | |
| 4 | How many people are present in total? | |
| 5 | The ocean floor is covered with sediments. |