This is the 8443rd most frequent Portuguese word.
viviani
"Viviani" is not a standard word in Portuguese; it is likely a proper noun, such as a name.
Here, "Viviani" is used as a proper noun, likely referring to someone's name.
Ela mencionou o nome Viviani durante a conversa.
She mentioned the name Viviani during the conversation.
In this sentence, "Viviani" is interpreted as a surname.
Eu pensei que Viviani era um termo técnico, mas descobri que é um sobrenome.
I thought Viviani was a technical term, but I found out it is a surname.
This usage of "Viviani" refers to the scientist Vincenzo Viviani, highlighting someone of historical significance.