Is the word não the same in Brazilian and European Portuguese?

No. While the spelling and fundamental meaning of "não" are identical in both dialects, there are differences in pronography and typical usage. In terms of pronunciation, Brazilian Portuguese tends to have a more open and resonant nasal vowel, whereas Continental Portuguese often features a more closed or subtle nasalization. In terms of usage, Brazilians frequently use "não" with the verb ter to denote existence (e.g., "não tem"), whereas Portuguese speakers use the grammatically standard "não há." Additionally, the way "não" interacts with pronouns and verb conjugations (such as the use of você in Brazil versus tu in Portugal) differs significantly.

Brazilian Portuguese Examples

1. Não tem açúcar no café. (There is no sugar in the coffee.)
2. Eu não vi você ontem. (I didn't see you yesterday.)
3. Não me liga agora. (Don't call me now.)
4. Não faz mal. (It doesn't matter / It's no problem.)
5. Não gosto de esperar. (I don't like waiting.)

European Portuguese Examples

1. Não há açúcar no café. (There is no sugar in the coffee.)
2. Não te vi ontem. (I didn't see you yesterday.)
3. Não me ligues agora. (Don't call me now.)
4. Não faz mal. (It doesn't matter / It's no problem.)
5. Não gosto de esperar. (I don't like waiting.)