This is the 8148th most frequent Portuguese word.
stefania
"Stefania" is not a Portuguese word; it is a proper noun, typically a given name.
Proper noun, used as a name in the subject role.
Stefania é uma pessoa muito dedicada ao trabalho.
Stefania is a person very dedicated to her work.
Proper noun, used as a name in the role of the entity performing an action.
O livro que Stefania me recomendou foi muito interessante.
The book Stefania recommended to me was very interesting.
Proper noun, used as a name in the role of participant in an interaction.