plural grandmas
Definition of grandma
informal
: the mother of one's father or mother : grandmother
We took the kids to visit their grandma and grandpa.
— often used as a form of address "Grandma," I said, "is trapping fish legal in this state?"— Richard Peck
Test Your Vocabulary
Odd Habits and Quirks
-
- Which of the following best describes an easily irritated person?

Test your vocabulary with our 10-question quiz!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share grandma
Time Traveler for grandma
The first known use of grandma was in 1772
See more words from the same year