This is the 9146th most frequent Portuguese word.
brazilian
"Brazillian" is not a Portuguese word. In English, it refers to something related to Brazil.
The word 'brasileiro' is used as a noun to refer to a specific person from Brazil.
O brasileiro adora futebol.
The Brazilian loves football.
The word 'brasileiro' is used as an adjective to describe the origin or type of coffee.
Eu comprei um café brasileiro.
I bought Brazilian coffee.
The word 'brasileiro' is used as an adjective to describe a characteristic (style) associated with Brazil.