This is the 55th most frequent Portuguese word.
três
The number three.
The numeral 'três' is used to indicate a quantity.
Eu tenho três gatos.
I have three cats.
The numeral 'três' is used in a sequence to indicate a number.
Quando eu contar até três, vamos começar.
When I count to three, we'll start.
The numeral 'três' is treated as a subject or identifier in this sentence.