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

Yes

The word "organizou" is identical in both Brazilian and Continental Portuguese regarding spelling, meaning, and grammatical function (it is the third-person singular of the verb organizar in the pretérito perfeito do indicativo). The only difference is the pronunciation. In Brazilian Portuguese, the vowels tend to be more "open" and clearly articulated. In Continental Portuguese, unstressed vowels are often more "closed" or reduced, meaning the "o" in the first syllable may sound more neutral or muffled compared to the Brazilian pronunciation.

Brazilian Portuguese

1. Ela organizou uma festa de aniversário incrível. (She organized an amazing birthday party.)
2. O chefe organizou todos os papéis da mesa. (The boss organized all the papers on the desk.)
3. Ele organizou uma viagem de última hora. (He organized a last-minute trip.)
4. A escola organizou um evento para os alunos. (The school organized an event for the students.)
5. Ela organizou toda a bagunça do quarto. (She organized all the mess in the room.)

Continental Portuguese

1. Ela organizou uma festa de aniversário fantástica. (She organized a fantastic birthday party.)
2. O chefe organizou todos os papéis da secretária. (The boss organized all the papers on the desk.)
3. Ele organizou uma viagem de última hora. (He organized a last-minute trip.)
4. A escola organizou um evento para os alunos. (The school organized an event for the students.)
5. Ela organizou toda a desarrumação do quarto. (She organized all the mess in the room.)