in-law

US /ˈɪn.lɔː/

UK /ˈɪn.lɔː/

1.

a relative by marriage

:

•

My sister-in-law is coming to visit next week.

•

He gets along well with his mother-in-law.

:

law lawful brother-in-law sister-in-law daughter-in-law father-in-law mother-in-law