What is another word for co-grandmother?
Pronunciation: [kˈə͡ʊɡɹˈandmʌðə] (IPA) 
Co-grandmother typically refers to two grandmothers who share the responsibility of raising their grandchildren. However, there are a few other terms that can be used to describe this relationship. One alternative term is "joint grandmother," which implies that both grandmothers are equally involved in the upbringing of the grandchildren. Another term is "grand-aunt," which refers to an aunt who takes on a more grandmotherly role in the lives of her nieces and nephews. Lastly, "surrogate grandmother" can be used to describe a non-biological grandmother figure who steps in to provide love, support, and guidance to grandchildren.
