This is the 1960th most frequent Portuguese word.
sampaio
"Sampaio" is a Portuguese surname, often used as a proper noun, and may not have a specific standalone meaning.
In this sentence, 'Sampaio' is used as a proper noun, specifically as a surname.
O sobrenome dele é Sampaio.
His last name is Sampaio.
Here, 'Sampaio' refers to a place name, likely a town or city.
Eu passei as férias na cidade de Sampaio.
I spent my vacation in the town of Sampaio.
In this case, 'Sampaio' is used as a proper noun representing a well-known individual, specifically a poet.