What do your children call their grandparents?

[Posey]

My parents are grandma and grandpa.
Dh's are gran and grandad.

Where we live, most people call them nan and grandad.

mine are nan/grandad, or nan and XXX (her BF)
Dh's are Gran XXX, gran XXX, and gran XXX (he has a lot of grans!) and one granddad.

don't know what our children will call our parents.

nana and grandad and the first names after.

Nain and "Taid first name" for dm and stepdad, and "mummy's daddy taid" for df who we don't see much of (all Welsh), and Mama and grandad for the other ones.