However, it can have different meanings depending on the language and region:
* Hindi and Bengali: "Didi" means elder sister in these languages.
* Mandarin Chinese: "Dìdì" (with a tone mark) means younger brother.
* Swahili: "Dada" (pronounced similarly to "Didi") means brother, but it can also be used for an elder sibling regardless of gender.
If you are unsure of the context, it's best to clarify the intended meaning of "Didi".