What Does Great Great Aunt Mean?

: the aunt of one's father or mother. — called also great-aunt.

What is a great great aunt?

An aunt-in-law is the aunt of one's spouse. An aunt-in-law can also be an aunt by marriage (female spouse of a relative). A great-aunt/grandaunt (sometimes written grand-aunt) is the sister of one's grandparent. ... Similarly, the female siblings of one's great-grandparents are referred to as great-grandaunts.

What is the difference between grand-aunt and great aunt?

Technically, the sister of one of your grandparents is your grand-aunt. "Grand" shows that it is one generation away; "great" is supposed to be added to generations beyond "grand." But like so many other words in the English language, there's the dictionary definition and then there's how it's commonly used.