This is the 303rd most frequent Portuguese word.
próprio
Own; proper; itself.
Here, 'próprio' emphasizes ownership, indicating that the book belongs to him.
Ele trouxe seu próprio livro para a aula.
He brought his own book to the class.
Here, 'próprio' conveys individuality, suggesting a unique or personal direction.
É necessário encontrar o próprio caminho na vida.
It's necessary to find one's own path in life.
Here, 'próprio' highlights personal achievement, underlining that the work was done by himself.