Definition, synonyms and related words
plural of grandparent
"My grandparents live in the countryside and visit us every summer."
Third-person singular simple present indicative form of grandparent
"He grandparents his great-grandchildren every summer by telling them old family stories."
In plain English: There is no verb form of grandparents because they are only used as nouns to describe your parents' parents.
"We all grandparents our children and their kids to keep them safe."