This is the 1917th most frequent Portuguese word.
casas
"Houses."
Here, 'casas' is used as the plural form of 'casa', meaning 'houses', to refer to multiple residential buildings.
As casas nesta rua são antigas.
The houses on this street are old.
In this sentence, 'casas' again refers to 'houses,' with emphasis on the available ones for renting. It indicates objects or properties available for a specific purpose.
Ele encontra casas para alugar online.
He finds houses to rent online.
Here, 'casas' is used similarly to indicate 'houses,' particularly those as subjects of the action 'to paint.'