This is the 9110th most frequent Portuguese word.
bisneta
"Bisneta" means "great-granddaughter" in English.
The word "bisneta" is used to refer to the female great-grandchild.
A bisneta dela gosta de brincar no parque.
Her great-granddaughter likes to play in the park.
Here, "bisneta" is used to indicate a personal relation of great-grandchild that is gender-specific.
Ela falou sobre sua bisneta com muito carinho.
She talked about her great-granddaughter with much affection.
In this sentence, "bisneta" refers again to the family relation of a great-grandchild, specifying the visit to her.