| dì | (prefix indicating ordinal number, e.g. first, number two etc) |
| 第 | (prefix indicating ordinal number, e.g. first, number two etc) |
| 第一 | first number one |
| 第一世界 | first world |
| 第一个层次 | the first stage |
| 第一个节目 | the first item on the programme |
| 第一产业 | primary sector of industry |
| 第一人称 | first person (in writing) |
| 第一代 | first generation |
| 第一例 | first case first instance first time (sth is done) |
| 第一副本 | first authentic copy |
| 第一受益人 | primary beneficiary |
| 第一名 | the first; the lead |
| 第一国际 | First international, organized by Karl Marx in Geneva in 1866 |
| 第一地点 | A place where something first happens or is discovered. |
| 第一型糖尿病 | Type 1 diabetes |
| 第一基本形式 | (math.) first fundamental form |
| 第一声 | first tone in Mandarin high level tone |
| 第一夫人 | First Lady (wife of US president) |
| 第一季度 | first quarter (of financial year) |
| 第一审 | first hearing |