General good:
* Bom: This is the most common and general way to say "good" in Portuguese.
* Ótimo: This means "excellent" or "great," implying a higher level of goodness.
For greetings:
* Bom dia: This means "good morning."
* Boa tarde: This means "good afternoon."
* Boa noite: This means "good evening" or "good night."
For describing something:
* Bom: This is the most common and general way to describe something good.
* Ótimo: This means "excellent" or "great," implying a higher level of goodness.
* Legal: This means "cool" or "nice" and is more informal.
* Maneiro: This also means "cool" or "nice" and is even more informal than "legal."
The best way to choose the right word depends on the situation and the level of formality you want to convey.