"Fille Unique" are the French words for "only daughter". It projects a meaning of the one and only, very unique, and most treasued daughter. We have one daughter and she is our "Fille Unique". Here is her "Fille Unique", at least for the moment.
The picture was taken when I visited them two weeks ago. She is going to be two years old this summer. She looks just like a perfect little doll, and with such a good temperament.