co-sibling-in-law (English, noun)
expansion: co-sibling-in-law (plural co-siblings-in-law)
Senses:
glosses: One's spouse's sibling's spouse; either of two (or more) people who marry siblings, from the perspective of the other.
tags: rare
glosses: One's sibling's spouse's sibling; either of two (or more) people whose siblings marry each other, from the perspective of the other.
tags: rare
Forms:
form: co-siblings-in-law
tags: plural