This is the 822nd most frequent Portuguese word.
arthur
In Portuguese, "Arthur" is a proper noun, typically a male given name.
In this sentence, 'Arthur' is a proper noun that denotes an individual's name.
Arthur é meu melhor amigo.
Arthur is my best friend.
Here, 'Arthur' still serves as a proper noun, referenced explicitly as a name.
Quando eu disse o nome 'Arthur' na aula, todos riram.
When I said the name 'Arthur' in class, everyone laughed.
In this example, 'Arthur' is used as a proper noun assigned to a pet, illustrating its applicability beyond referring exclusively to people.