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

Yes

The word "limpa" is identical in meaning, spelling, and grammar in both Brazilian and Continental Portuguese. It functions either as the feminine singular form of the adjective "clean" or as the third-person singular conjugation of the verb limpar (to clean). The only difference is pronunciation. In Brazilian Portuguese, vowels tend to be more open and the rhythm is more "syllable-timed," making the word sound more melodic. In Continental Portuguese, vowels are often more closed or reduced, which can make the "a" at the end of "limpa" sound much shorter or almost swallowed.

Brazilian Portuguese Examples

1. A cozinha está muito limpa. (The kitchen is very clean.)
2. Ela limpa o quarto todo dia. (She cleans the room every day.)
3. Essa camiseta branca não fica limpa. (This white t-shirt doesn't stay clean.)
4. Ele limpa o celular com cuidado. (He cleans the cell phone carefully.)
5. A calçada está limpa. (The sidewalk is clean.)

Portuguese (Continental) Examples

1. A cozinha está bastante limpa. (The kitchen is quite clean.)
2. Ela limpa o quarto diariamente. (She cleans the room daily.)
3. Esta t-shirt branca não se mantém limpa. (This white t-shirt doesn't stay clean.)
4. Ele limpa o telemóvel com cuidado. (He cleans the mobile phone carefully.)
5. O passeio está limpo. (The sidewalk is clean.)