This is the 6714th most frequent Catalan word.
sergio
The Catalan word "sergio" does not have a specific meaning; it is typically a proper noun, referring to the name Sergio.
The word 'Sergio' is simply used as a proper noun to refer to the friend's name.
Sergio és un bon amic meu.
Sergio is a good friend of mine.
In this sentence, 'Sergio' functions as the subject of the sentence, specifying who is taking the action.
Sergio va dir que estudiaria per a l'examen avui.
Sergio said he would study for the exam today.
Here, 'Sergio' is again a proper noun which represents the subject of the inquiry.