This is the 4193rd most frequent Portuguese word.
thyago
"Thyago" is a variant spelling of the Portuguese name "Tiago," equivalent to "James" or "Jacob" in English.
In this sentence, 'Thyago' is used as a proper noun, identifying the name of a person.
Thyago é meu amigo de infância.
Thyago is my childhood friend.
Here, 'Thyago' refers to the concept of the name itself, discussing its commonality.
Thyago é um nome comum no Brasil.
Thyago is a common name in Brazil.
Here, 'Thyago' is used inquiring about whether the listener knows a person with this name.