| 难以HSK 4 | nán yǐ | hard to (predict, imagine etc) | |
| 难道HSK 4 | nán dào | don't tell me ...; could it be that...? | |
| 艰难HSK 6 | jiān nán | difficult; hard; challenging | |
| 难题HSK 3 | nán tí | difficult problem | |
| 难得HSK 6 | nán dé | seldom; rare; hard to come by |
| 灾难HSK 6 | zāi nàn | disaster; catastrophe | |
| 难民 | nàn mín | refugee | |
| 苦难HSK 4 | kǔ nàn | suffering | |
| 遇难 | yù nàn | to perish; to be killed | |
| 磨难 | mó nàn | a torment; a trial; tribulation; a cross (to bear); well-tried |
| 1 | This question is difficult. | |
| 2 | This math question is very difficult. | |
| 3 | I find it hard to memorize Chinese characters. | |
| 4 | This pencil is difficult to write with. | |
| 5 | The last question was very difficult. |