This is the 3472nd most frequent Portuguese word.
naquela
"In that" (feminine form).
"Naquela" is used here as a demonstrative pronoun in the feminine singular form to refer to a specific mentioned or identified location.
Naquela casa, viviam três gerações da mesma família.
In that house, three generations of the same family lived.
"Naquela" functions as a reference to a specific period or time that is feminine singular, indicating a past context.
Eu conheci ela naquela época, quando ainda estávamos na escola.
I met her at that time, when we were still in school.
"Naquela" is employed to denote a specific situation or context that is understood to be feminine singular.