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

Yes

The word "garrafa" is identical in meaning, spelling, and grammar in both Brazilian and Continental Portuguese. The only differences are phonetic:

• Vowel Reduction: In Continental Portuguese, the final unstressed "a" is much more closed and neutralized, often sounding like a very short "uh" or nearly disappearing. In Brazilian Portuguese, the final "a" is more open and clearly articulated.
• The "rr" Sound: In many Brazilian dialects, the "rr" is often more aspirated (similar to the "h" in the English word "house"), whereas in Portugal, it is typically a stronger, more guttural sound produced further back in the throat.

Brazilian Portuguese Examples:

1. Eu comprei uma garrafa de água. (I bought a bottle of water.)
2. A garrafa de suco está na geladeira. (The juice bottle is in the fridge.)
3. Cuidado para não quebrar a garrafa de vidro. (Be careful not to break the glass bottle.)
4. Ela encheu a garrafa com refrigerante. (She filled the bottle with soda.)
5. Preciso de uma garrafa térmica para o café. (I need a thermos bottle for the coffee.)

Continental Portuguese Examples:

1. Eu comprei uma garrafa de água. (I bought a bottle of water.)
2. A garrafa de sumo está no frigorífico. (The juice bottle is in the fridge.)
3. Cuidado para não partir a garrafa de vidro. (Be careful not to break the glass bottle.)
4. Ela encheu a garrafa com refrigerante. (She filled the bottle with soda.)
5. Preciso de uma garrafa térmica para o café. (I need a thermos bottle for the coffee.)