General "good":
* Bom/Boa: This is the most common and general way to say "good" in Portuguese. It is used for both masculine and feminine nouns.
* Example: "Este é um bom livro." (This is a good book.)
* Example: "Ela é uma boa pessoa." (She is a good person.)
Other meanings of "good":
* Bem: This can also mean "good", but it is often used in a more informal or colloquial way.
* Example: "Estou bem, obrigado." (I am good, thank you.)
* Example: "Tudo bem?" (Everything good?)
* Ótimo/Ótima: This means "great" or "excellent".
* Example: "Este restaurante é ótimo!" (This restaurant is great!)
* Example: "Essa música é ótima." (This song is excellent.)
* Excelente: This also means "excellent".
* Example: "O serviço foi excelente." (The service was excellent.)
* Bom dia/Boa tarde/Boa noite: This is a greeting used for "good morning/good afternoon/good evening."
* Bem feito: This means "good job" or "well done".
* De nada: This means "you're welcome", and is often used in response to "thank you".
The best way to choose the right word depends on the specific context and the intended meaning.