surnamenoun [ C ]uk /ˈsɜː.neɪm/ us /ˈsɝː.neɪm/ mainly UK US usually last name, UK also second name
- The surname 'Smith' is very common in Britain.
- They're sisters, are they? I knew their surname was the same, but I never made the connection.
- How do you pronounce your surname?
- Her first name is Sarah but I don't know her surname.