| 旦 | dàn | dawn; morning; day-break; day |
| 一旦 | yī dàn | in case (sth happens); if; once (sth happens, then...); when; in a short time; in one day |
| 约旦 | Yuē dàn | Jordan |
| 元旦 | yuán dàn | New Year's Day |
| 约旦河 | Yuē dàn hé | Jordan River |
| 复旦大学 | Fù dàn Dà xué | Fudan University, Shanghai |
| 刀马旦 | dāo mǎ dàn | female warrior role in Chinese opera |
| 危在旦夕 | wēi zài dàn xī | lit. danger now morning or evening (idiom); on the verge of death; expected any moment now; The crisis is imminent. |
| 命在旦夕 | mìng zài dàn xī | to be at death’s door (idiom) |
| 大柴旦 | Dà chái dàn | Da Qaidam county level subdivision of Haixi Mongol and Tibetan autonomous prefecture 海西蒙古族藏族自治州, Qinghai |
| 大柴旦行政区 | Dà chái dàn xíng zhèng qū | Da Qaidam county level subdivision of Haixi Mongol and Tibetan autonomous prefecture 海西蒙古族藏族自治州, Qinghai |
| 大柴旦行政委员会 | Dà chái dàn xíng zhèng wěi yuán huì | Da Qaidam county level subdivision of Haixi Mongol and Tibetan autonomous prefecture 海西蒙古族藏族自治州, Qinghai |
| 大柴旦镇 | Dà chái dàn zhèn | Da Qaidam town in Haixi Mongol and Tibetan autonomous prefecture 海西蒙古族藏族自治州, Qinghai |
天有不测风云，
人有旦夕祸福 | tiān yǒu bù cè fēng yún ,
rén yǒu dàn xī huò fú | fortune as unpredictable as the weather, every day may bring fortune or calamity (idiom); sth unexpected may happen at any moment |
| 巴旦杏 | bā dàn xìng | almond |
| 复旦 | Fù dàn | Fudan University, Shanghai, abbr. for 复旦大学 |
| 忘八旦 | wàng bā dàn | turtle's egg (highly offensive when directed at sb) |
| 撒旦 | Sā dàn | Satan or Shaitan |
| 文旦 | wén dàn | pomelo |
| 旦角 | dàn jiǎo | Dan, female roles in Chinese opera (played by specialized male actors) |
| 李旦 | Lǐ Dàn | Li Dan, personal name of sixth Tang emperor Ruizong 睿宗 (662-716), reigned 684-690 and 710-712 |
| 枕戈待旦 | zhěn gē dài dàn | to keep one's spear by the pillow and await the dawn (idiom); ready for battle; determined to kill the enemy; Be prepared! |
| 正旦 | zhèng dàn | starring female role in a Chinese opera |
| 武旦 | wǔ dàn | female military role in a Chinese opera |
| 花旦 | huā dàn | role of vivacious young female in Chinese opera |
| 贴旦 | tiē dàn | female supporting actress in a Chinese opera |
| 通宵达旦 | tōng xiāo dá dàn | overnight until daybreak (idiom); all night long; day and night |
| 闺门旦 | guī mén dàn | young unmarried lady role in Chinese opera |
| 震旦 | zhèn dàn | ancient Indian name for China |
| 震旦纪 | zhèn dàn jì | Sinian (c. 800-542 million years ago), late phase of pre-Cambrian geological era |
| 魔王撒旦 | mó Wáng Sā dàn | Satan, Devil king |
