What does "co-parent-in-law" mean?

A parent of one's son- or daughter-in-law, that is, a parent-in-law of one's son or daughter.

What is a synonym for "co-parent-in-law"?

Common synonyms include: co-grandparent.

Co-parent-in-law

noun

noun ·Rare ·Advanced level

Definitions

Noun

1
A parent of one's son- or daughter-in-law, that is, a parent-in-law of one's son or daughter.
"the relation between co-parents-in-law focuses on the production of grandchildren […] the relation between co-parents-in-law as stabilized through shared grandchildren"

Synonyms

All synonyms

co-grandparent

Example

More examples

"the relation between co-parents-in-law focuses on the production of grandchildren […] the relation between co-parents-in-law as stabilized through shared grandchildren"

Etymology

From co- + parent-in-law or co-parent + -in-law.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.