This is the 22nd most frequent Portuguese word.
nos
"Nos" in Portuguese means "us" in English.
Here, 'nos' is used as an attached object pronoun to indicate that the action of helping is directed towards 'us'.
Você pode ajudar-nos com este projeto?
Can you help us with this project?
In this context, 'nos' is a pronoun meaning 'us,' indicating the reception of the action.
Você nos trouxe um presente.
You brought us a gift.
In this sentence, 'nos' acts as a reflexive pronoun, indicating that the action of meeting is mutual and involves both parties.