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

Yes

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

• Pronunciation: In Brazilian Portuguese, the "s" at the end of the word is typically pronounced as a soft "s" (as in "sun") in most regions (like São Paulo or Minas Gerais), although it is pronounced as "sh" (as in "shoe") in Rio de Janeiro and other coastal areas. In Continental Portuguese, the "s" is almost always pronounced as "sh" ([ʃ]). Additionally, the vowel "e" may be slightly more open in many Brazilian dialects compared to the more closed sound typical of Portugal.

Brazilian Portuguese Examples:

1. Os preços no supermercado subiram muito. (Prices at the supermarket went up a lot.)
2. Eu preciso conferir os preços antes de comprar. (I need to check the prices before buying.)
3. Esses preços estão muito baixos hoje. (These prices are very low today.)
4. Onde eu posso encontrar os melhores preços? (Where can I find the best prices?)
5. Não gosto de lojas com preços tão altos. (I don't like stores with such high prices.)

Continental Portuguese Examples:

1. Os preços no supermercado subiram imenso. (Prices at the supermarket went up immensely.)
2. Preciso verificar os preços antes de comprar. (I need to verify the prices before buying.)
3. Estes preços estão muito baixos hoje. (These prices are very low today.)
4. Onde é que posso encontrar os melhores preços? (Where is it that I can find the best prices?)
5. Não gosto de lojas com preços tão elevados. (I don't like shops with such high prices.)