This is the 70th most frequent Portuguese word.
por
The Portuguese word "por" means "by," "through," "for," or "because of," depending on context.
In this sentence, 'por' is used to indicate the reason or motive for an action.
Eu fiz isso por você.
I did this for you.
Here, 'por' is used in the context of agency, indicating the person responsible for the action in a passive voice statement.
O livro foi escrito por ela.
The book was written by her.
In this example, 'por' denotes the idea of passage or movement through a place.