新しん姓せい

noun

new surname

Refers to the surname one takes after marriage or other life events, contrasting with one's former name. Often used in administrative or personal contexts.

• 結けっ婚こんして新しん姓せいになりました。

  I got married and took a new surname.

• 新しん姓せいでの手て続つづきはまだ終おわっていません。

  The procedures under my new surname are not yet finished.