surname
US /ˈsɝː.neɪm/
UK /ˈsɝː.neɪm/

1.
sobrenome, apelido
a hereditary name common to all members of a family, as distinct from a given name.
:
•
Her surname is Smith.
O sobrenome dela é Smith.
•
Please write your first name and surname on the form.
Por favor, escreva seu nome e sobrenome no formulário.