This is the 3174th most frequent Portuguese word.
confirmação
Confirmation.
Here, 'confirmação' refers to the formal acknowledgment or evidence that something has occurred, specifically the payment.
Recebi a confirmação do pagamento por e-mail.
I received the payment confirmation by email.
In this case, 'confirmação' denotes the act of affirming or verifying that the event is going to happen.
A confirmação do evento foi adiada para a próxima semana.
The confirmation of the event was postponed to next week.
Here, 'confirmação' emphasizes the need for assurance or verification to ensure correctness before proceeding with actions.