lastname

noun

UK /ˈlɑːst.neɪm/

US /ˈlæst.neɪm/

A lastname is the name a family shares that comes after your first name.

My lastname is Smith, and my sister has the same lastname.

SYNONYMS

family name surname second name clan name

RELATED WORDS

first name middle name full name nickname signature

OTHER MEANINGS

2. The name a person is known by in a formal or official setting.

Please write your lastname on the top of the form.

3. A family's shared name passed down from parents to children.

Her lastname has been in the family for many generations.

4. The final part of a person's full name.

In 'Anna Lee Brown,' the lastname is Brown.