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

Yes

The word "comprar" is identical in meaning, spelling, and conjugation in both Brazilian and Continental Portuguese. The differences between the two dialects regarding this specific word are primarily phonological (pronunciation) and syntactic (how it interacts with other words in a sentence).

• Pronunciation: In Brazil, vowels are generally more open and clearly articulated. In Portugal, unstressed vowels are often "reduced" or almost swallowed, making the word sound more closed.
• Usage and Syntax: While the verb "comprar" does not change, the words around it often do. For example, a Brazilian might say "Eu preciso comprar" (omitting a preposition), whereas a Portuguese person would naturally say "Eu preciso de comprar" (including the preposition de). Additionally, the objects being bought (like "celular" vs. "telemóvel") differ.

Brazilian Portuguese Examples

1. Eu vou comprar um celular novo. (I am going to buy a new cell phone.)
2. Você comprou o que eu pedi? (Did you buy what I asked for?)
3. Nós precisamos comprar comida para a festa. (We need to buy food for the party.)
4. Eu comprei um tênis muito legal. (I bought a very cool sneaker.)
5. Ela gosta de comprar roupas online. (She likes to buy clothes online.)

Continental Portuguese Examples

1. Vou comprar um telemóvel novo. (I am going to buy a new mobile phone.)
2. Compraste o que eu pedi? (Did you buy what I asked for?)
3. Precisamos de comprar comida para a festa. (We need to buy food for the party.)
4. Comprei uns ténis muito fixes. (I bought some very cool sneakers.)
5. Ela gosta de comprar roupa online. (She likes to buy clothes online.)