This is the 5534th most frequent Portuguese word.
uvas
Grapes.
In this sentence, 'uvas' is used as a noun, part of the compliment explaining the habit of eating fruits, specifically grapes.
Eu gosto de comer uvas frescas no café da manhã.
I like to eat fresh grapes for breakfast.
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.