This is the 829th most frequent Portuguese word.
imposto
Tax.
Imposto is used here to mean 'tax', a mandatory financial charge imposed by a government.
O governo aumentou o imposto sobre produtos importados.
The government increased the tax on imported goods.
Imposto is used here to mean 'imposed', describing something that has been forced or mandated upon someone.
Ele se sente sobrecarregado pelo trabalho imposto.
He feels overwhelmed by the work imposed on him.
Imposto is again used here to mean 'imposed', indicating the requirement enforced or specified regarding the deadline.