This is the 1350th most frequent Spanish word.
gustavo
"Gustavo" is a Spanish masculine given name, equivalent to "Gustave" or "Gustav" in English.
The word 'Gustavo' is used here as a proper noun to refer to a person's name.
Gustavo es un nombre muy común en algunos países.
Gustavo is a very common name in some countries.
Here, 'Gustavo' is again used as a proper noun referring to a specific individual participating in an event.
Gustavo llegó temprano a la reunión.
Gustavo arrived early to the meeting.
In this sentence, 'Gustavo' is used as a proper noun referring to a specific person being referenced in a question.