surnamenoun [ C ]
uk/ˈsɜː.neɪm/us/ˈsɝː.neɪm/mainly UK US usually last name, UK also second nameA2 the name that you share with other members of your family; last name:
Her first name is Sarah but I don't know her surname.
More examples
- 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.