surname
nounUK /ˈsɜːneɪm/
US /ˈsɜːrneɪm/
A surname is the family name that you share with your parents.
Her surname is Smith, just like her dad's.
RELATED WORDS
OTHER MEANINGS
2. A name added to a person's first name to tell families apart.
In many countries, the surname comes after the first name.
3. To give someone a family name.
The king was surnamed 'the Great' by his people.
4. A nickname or extra name given to a person.
The old sailor had the surname 'Saltbeard' among his friends.