This is the 1457th most frequent Portuguese word.
afirmar
"To affirm" or "to state assertively."
In this context, 'afirmar' means 'to assert,' indicating that she expressed her opinion confidently.
Ela afirmou sua opinião sobre o assunto na reunião.
She asserted her opinion on the matter in the meeting.
Here, 'afirmar' means 'to state,' used to express a declaration or a claim.
O professor afirma que a prática leva à perfeição.
The teacher states that practice leads to perfection.
In this sentence, 'afirmar' means 'to confirm,' implying the corroboration of the hypothesis with evidence.