"Centenarian" is usually used for anyone one hundred or older.
A 100-year old person is called a centenarian.
A nanogenarian is a person between 90 and 99 years of age.
It means "half as old." For ages, if one person is twice as old as another, the other person is half as old. A four-year-old car is half as old as an eight-year-old car.
Will you be is usually better, but are you going to be is not incorrect.
In Having Our Say, Part 1, Sweet Sadie, Queen Bess, begins with the author saying, "Both more than one hundred years old, Sarah ("Sadie") Delany and her sister, Annie Elizabeth ("Bessie") Delany are among the oldest living witnesses to American history" (Part 1, page 3). At the time the book was written in 1991, Sadie was 103 years old, Bessie was 101 years old.
A one-hundred-year-old person can be called a Centenarian.
centenarian
Centenarian.
a person who is a hundred or more years old
Centenarian
A person over a hundred years old is called a centenarian.
A person who is at least one hundred years old is commonly referred to as a centenarian. These individuals have reached a significant milestone in their lives and are often celebrated for their longevity and wisdom.
quinquagenarian
Old
Probably a liar! Technically, they're a novemcentennium.
A "septuagenarian" is a person who is 70 through 79 years old.
A person who is 60-69 years old is called a sexagenarian.