This is the 5534th most frequent Portuguese word.
uvas
Grapes.
The word 'uvas' is used as a noun, specifically a plural form indicating the fruit that is being bought.
Eu comprei uvas no mercado ontem.
I bought grapes at the market yesterday.
Here, 'uvas' is a subject noun in the sentence, referring to the quality of the fruit brought by someone.
As uvas que você trouxe estão muito doces.
The grapes that you brought are very sweet.
In this sentence, 'uvas' is used as a noun, part of the compliment explaining the habit of eating fruits, specifically grapes.