This is the 1469th most frequent Portuguese word.
aquela
"That" (referring to something feminine and distant).
In this sentence, 'aquela' is used as a demonstrative adjective referring to a specific house that is distant in either space or context.
Aquela casa é muito bonita.
That house is very beautiful.
Here, 'aquela' specifies a particular shirt that both the speaker and the listener are familiar with, indicating distance.
Eu quero comprar aquela camisa que vimos ontem.
I want to buy that shirt we saw yesterday.
In this example, 'daquela' (a contraction of 'de' and 'aquela') references a specific old song, showing its function in indirect contexts.