Definition of parent-in-law in English:

parent-in-law

noun

  • A mother-in-law or father-in-law.

Origin

Mid 19th century. From parent + -in-law.

Pronunciation

parent-in-law

/ˈpɛːrəntɪnˌlɔː//ˈpɛːr(ə)ntɪnˌlɔː/