grand‧par‧ent /ˈɡrænˌpeərənt $ -ˌper-/ BrE AmE noun [countable usually plural]
one of the parents of your mother or father:
My grandparents live in Sussex.
grand·par·ent[grandparentgrandparents][ˈɡrænpeərənt][ˈɡrænperənt]nounusually plural
the father or mother of your father or mother • The children are staying with their grandparents. Example Bank: • I've sent photos of the children to both sets of grandparents.