The nephew's daughter-in-law, as the name implies, is the nephew's daughter-in-law. My sister's son, my wife. Then the brother's son and his wife are called nieces.

If you call your nephew's daughter-in-law, the other person calls himself uncle or aunt.

Extended data:

Relatives in China:

1. Call mom and dad (grandma and grandpa) and call yourself granddaughter/grandson.

2. Call your father's mother and father grandparents, and call yourself granddaughter/grandson.

3. Call your mother's sister a slave/aunt (menstruation) and call yourself a slave/slave/niece/niece.

4. Call your mother's sister-in-law uncle (aunt's father) and call yourself aunt's daughter/aunt.

5. Take a word in front to call someone else's aunt and uncle; When you address others as your aunts and uncles, put the word family in front of them.

6. Call your father's sister and aunt and your niece/nephew.

7. Call dad's sister-in-law uncle (uncle) and call yourself uncle/uncle.