This is the 5684th most frequent Portuguese word.
alexei
"Alexei" is not a Portuguese word; it is a given name of Russian origin.
In this sentence, 'Alexei' is used as a proper noun, referring to a person's name.
Alexei é um aluno dedicado e sempre faz os trabalhos com excelência.
Alexei is a dedicated student and always performs tasks with excellence.
Here, 'Alexei' again serves as a proper noun, indicating the subject taking action.
Alexei nomeou o projeto em homenagem ao seu mentor.
Alexei named the project in honor of his mentor.
In this context, 'Alexei' is used to refer to a specific individual within a certain group.