姓
sei
surname, family name
Example sentences
池田が姓で和子が名です。
Ikeda is my last name, and Kazuko is my first name.
姓だけを大文字で書きなさい。
Write only your family name in capitals.
最近は、結婚しても自分の姓を変えたくないという女性が増えている。
These days the number of women who don't want to change their family names even after they get married is increasing.