妹いもうとさん

noun

younger sister (honorific)

Polite term used to refer to someone else's younger sister. Not used for one's own sister.

• 妹いもうとさんはお元げん気きですか。

  How is your younger sister?

• 妹いもうとさんは大だい学がく生せいだそうですね。

  I hear your younger sister is a university student.