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In the world, 第 (ទី , 第
, Dì
) is a common gender-neutral first name. The given name 第 is characteristic of Cambodia, where it is quite a common unisex name, Algeria, where it is a rare epicene name, and South Korea, where it is a rare boy's name. In absolute terms, it is commonest in Cambodia, China, and Algeria. More prevalently, 第 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| ទី | Cambodia |
| 第 | China |
| Dì | Tunisia, Vietnam, China, Algeria, Morocco |
| 제 | South Korea |
第 is also a name for the fictitious and mythical characters: .