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

Yes

The differences between the use of "pequeno" in Brazilian Portuguese and Continental Portuguese are strictly phonetic. There are no differences in spelling, grammar, or the fundamental meaning of the word.

The primary difference lies in pronunciation:

• Brazilian Portuguese: The vowels are generally more "open" and the rhythm is more melodic. The unstressed vowels are clearly articulated.
• Continental Portuguese: The language features significant "vowel reduction." Unstressed vowels (like the 'e' in the first syllable of pequeno) are often shortened, neutralized, or almost swallowed, making the word sound much more clipped and consonant-heavy.

Brazilian Portuguese Examples

1. "Meu cachorro é muito pequeno." (My dog is very small.)
2. "Este apartamento é bem pequeno." (This apartment is quite small.)
3. "Ele é um menino pequeno." (He is a small boy.)
4. "Comprei um presente pequeno para você." (I bought a small gift for you.)
5. "A cidade é pequena e muito tranquila." (The city is small and very peaceful.)

Continental Portuguese Examples

1. "O meu cão é muito pequeno." (My dog is very small.)
2. "Este apartamento é muito pequeno." (This apartment is very small.)
3. "Ele é um menino pequeno." (He is a small boy.)
4. "Comprei um presente pequeno para ti." (I bought a small gift for you.)
5. "A cidade é pequena e muito tranquila." (The city is small and very peaceful.)