This is the 443rd most frequent Portuguese word.
aumentar
To increase or raise.
Here, 'aumentar' is used figuratively to mean 'to expand or enhance knowledge'.
Eu quero aumentar meus conhecimentos estudando mais.
I want to increase my knowledge by studying more.
In this context, 'aumentar' refers to increasing a count or a quantity.
Eles decidiram aumentar o número de aulas na semana.
They decided to increase the number of classes in the week.
Here, 'aumentar' signifies raising or elevating salaries, showing physical or numerical enhancement.