| 1 | 单位 | 單位 | dān wèi | dan1 wei4 | unit (of measure); unit (group of people as a whole); work unit (place of employment, esp. in the PRC prior to economic reform); Classifiers: 个 | | |
| 2 | 单 | 單 | dān | dan1 | bill; list; form; single; only; sole; odd number; Classifiers: 个 | | |
| 3 | 单纯 | 單純 | dān chún | dan1 chun2 | simple; pure; unsophisticated; merely; purely | | |
| 4 | 单独 | 單獨 | dān dú | dan1 du2 | alone; by oneself; on one's own | | |
| 5 | 单一 | 單一 | dān yī | dan1 yi1 | unlined garment; single; only; sole | | |
| 6 | 单调 | 單調 | dān diào | dan1 diao4 | monotonous | | |
| 7 | 单个 | 單個 | dān ge | dan1 ge5 | single; alone; individually; an odd one | | |
| 8 | 单元 | 單元 | dān yuán | dan1 yuan2 | unit (forming an entity); element; (in a residential building) entrance or staircase | | |
| 9 | 单细胞 | 單細胞 | dān xì bāo | dan1 xi4 bao1 | single-celled (organism); unicellular | | |
| 10 | 单体 | 單體 | dān tǐ | dan1 ti3 | monomer (chemistry) | | |
| 11 | 单项 | 單項 | dān xiàng | dan1 xiang4 | single phase (elec.); unidirectional; single-item | | |
| 12 | 单打 | 單打 | dān dǎ | dan1 da3 | singles (in sports); Classifiers: 场 | | |
| 13 | 单词 | 單詞 | dān cí | dan1 ci2 | word; Classifiers: 个 | | |
| 14 | 单点故障 | 單點故障 | dān diǎn gù zhàng | dan1 dian3 gu4 zhang4 | single point of failure | | |
| 15 | 单车族 | 單車族 | dān chē zú | dan1 che1 zu2 | cyclist | | |
| 16 | 单团 | 單團 | dān tuán | dan1 tuan2 | ad hoc group (tour group with a customized itinerary) | | |
| 17 | 单间差 | 單間差 | dān jiān chā | dan1 jian1 cha1 | single supplement (for a hotel room) | | |
| 18 | 单传 | 單傳 | dān chuán | dan1 chuan2 | to have only one heir in a generation (of a family, clan etc); to be learned from only one master (of a skill, art etc) | | |
| 19 | 单子 | 單子 | dān zi | dan1 zi5 | list of items; bill; form; bedsheet | | |
| 20 | 单侧 | 單側 | dān cè | dan1 ce4 | one-sided; unilateral | | |
| 21 | 单步指令 | 單步指令 | dān bù zhǐ lìng | dan1 bu4 zhi3 ling4 | single-step instruction (computer) | | |
| 22 | 单薄 | 單薄 | dān bó | dan1 bo2 | weak; frail; thin; flimsy | | |
| 23 | 单兵 | 單兵 | dān bīng | dan1 bing1 | individual soldier; (literary) isolated military unit, cut off from reinforcements | | |
| 24 | 单瓣 | 單瓣 | dān bàn | dan1 ban4 | single petal; single valve | | |
| 25 | 单板机 | 單板機 | dān bǎn jī | dan1 ban3 ji1 | single-board computer | | |