sibling-in-law

Translation

義理の兄弟姉妹 / 義兄弟 / 義姉妹

Meaning

The brother or sister of your spouse, or the spouse of your own brother or sister. This term is gender-neutral and is used when you want to refer to these relatives without specifying their gender.

Examples

• My sibling-in-law is coming to visit us for the holidays this year.
  My sibling-in-law is coming to visit us for the holidays this year.
• She gets along much better with her sibling-in-law than she does with her own brother.
  She gets along much better with her sibling-in-law than she does with her own brother.