| 独立 | dú lì | independent; independence; to stand alone | |
| 独特 | dú tè | unique; distinct; having special characteristics | |
| 单独 | dān dú | alone; by oneself; on one's own | |
| 独自 | dú zì | alone | |
| 孤独 | gū dú | lonely; solitary |
| 1 | Sometimes I feel lonely. | |
| 2 | He is easy to feel lonely. | |
| 3 | Go away! I need to think alone. | |
| 4 | She is accustomed to traveling alone. | |
| 5 | Lonely people need companionship. |
