This is the 5811th most frequent Portuguese word.
audrey
The word "Audrey" is not Portuguese; it is an English-origin name.
In this sentence, 'Audrey' is used as a proper noun, specifically referring to a person, Audrey Hepburn, a famous actress.
Eu assisti a um filme estrelado por Audrey Hepburn.
I watched a movie starring Audrey Hepburn.
Here, 'Audrey' again is a proper noun, referring to an individual and specifying her characteristics as commonly associated with her.
Audrey sempre foi conhecida por sua elegância e estilo.
Audrey has always been known for her elegance and style.
In this sentence, 'Audrey' refers to a friend of the speaker, a proper noun identifying a specific individual.