This is the 8837th most frequent Portuguese word.
aposentada
"Retired" (feminine).
Here, 'aposentada' is used as an adjective to describe the state of retirement of the subject 'Minha tia' (My aunt).
Minha tia está aposentada depois de trabalhar por 40 anos.
My aunt is retired after working for 40 years.
In this sentence, 'aposentada' is functioning as a noun referring to an individual who has retired from professional work.
Ela diz que, como aposentada, tem mais tempo para se dedicar ao artesanato.
She says that, as a retiree, she has more time to dedicate to crafting.
'Aposentada' is utilized here as a past participle describing the recent status change of the subject from working to retired.