Formal:
* Grande: This is the most common and versatile word for "big." It can be used for size, importance, or quantity.
Informal:
* Grande: This is also used informally.
* Grosseiro: This is a more colloquial word, often used for physical size.
* Enorme: This means "huge" or "enormous."
Example Sentences:
* Formal: "Ele é um homem grande." (He is a big man.)
* Informal: "Essa casa é grosseira!" (This house is huge!)
* Formal: "A grande maioria dos brasileiros fala português." (The vast majority of Brazilians speak Portuguese.)
* Informal: "Essa pizza é enorme!" (This pizza is enormous!)
The choice of word depends on the specific situation and the desired level of formality.