자기 부모의 부모. 할아버지나 할머니를 이르는 말.
A parent of one's father or mother; a grandmother or grandfather.
예문:
"Many children spend their summer vacations at their grandparents' house in the countryside."
"Becoming a grandparent is often described as one of life's most rewarding experiences."
"The school invited every grandparent to attend the special assembly for Grandparents' Day."