This is the 2315th most frequent Portuguese word.
helena
"Helena" is a proper noun in Portuguese, usually a female given name.
In this case, 'Helena' is used as a proper noun referring to a person's name.
Helena é uma excelente cozinheira.
Helena is an excellent cook.
Here, 'Helena' refers to the title of a literary work, utilized within quotation marks to denote it as such.
O romance "Helena" de Machado de Assis é fascinante.
The novel "Helena" by Machado de Assis is fascinating.
This usage presents 'Helena' as the name of a person being introduced in a statement about relationships.