Nièce.
The plural form of niece is nieces. French word for niece is niyce.
her niece is translated 'sa nièce' (fem.) in French.
ma nièce my niece
Niece et neveu
'Nephew' is translated 'neveu' and 'niece' is spelled 'nièce' in French.
My niece called asking for money. My brother's or sister's daughter is my niece.
My favorite niece is 'ma nièce préférée' in French.
je te souhaite un merveilleux voyage ma niece
Je suis votre nièce
Since nephews are male, use of the word "Miss" in any form is inappropriate. It is not usual to use either "Mr" or "Miss" in connection with these relationship names. It is appropriate to say or write, "My nephew is named Bob" or "My niece is named Maria." If you want to address them in a letter, it is usual to use their first name without the relationship. So you would not write "Dear Nephew Bob", but you might write "Dear Maria." It is not uncommon for a niece or nephew to use the term Aunt or uncle in addressing you, however. So a niece might write to her uncle as "Dear Uncle Joe."
It is pronounced like the English word "Niece". Neese.
Please write a longer question. If you are asking what is her relationshipp to you - she's your neice. You are her uncle.