In the USA, the correct term is a Great Aunt.
My mother has an Aunt Sally. Aunt Sally is the sister of my mother's mother, e.g. my grandmother. Aunt Sally is my Great Aunt. I have a child named Susie. Susie's Great-Great Aunt is Sally.
In other cultures:
"A grand-aunt (sometimes written as grand aunt, grandaunt, or great-aunt) is the sister, half- or step-sister, or sister-in-law of a grandparent. The male equivalent of an aunt is an uncle, and the reciprocal relationship is that of a nephew or niece."
All words are capitalized at the beginning of the sentence, commonnouns and propernouns included.Auntis a commonnoun but it is capitalized when it is used as a title or precedes a person'sname or when it is used as a direct address.Examples:I went shopping with Aunt Sallyyesterday.Are you home, Aunt?
Capitalize "Aunt" when it is used as a proper noun directly before the person's name, such as "Aunt Jane," "Aunt Mary," or "Aunt Sarah." However, if the word "aunt" is used informally or generically, it is not capitalized, such as "my aunt" or "she is an aunt."
No, the word "revivalist" does not need to be capitalized unless it is at the beginning of a sentence or part of a proper noun.
No, the word "seismograph" does not need to be capitalized unless it is at the beginning of a sentence or part of a title.
No, the word "motorcycles" does not need to be capitalized unless it is at the beginning of a sentence or part of a title.
All words are capitalized at the beginning of the sentence, commonnouns and propernouns included.Auntis a commonnoun but it is capitalized when it is used as a title or precedes a person'sname or when it is used as a direct address.Examples:I went shopping with Aunt Sallyyesterday.Are you home, Aunt?
If you were saying the name of your aunt then it would be capitalized. e.g. Aunt Selma came over this weekend. If you were just saying aunt, then it wouldn't be capitalized. e.g. My aunt came over this weekend.
The word evolution does not need to be capitalized.
No, coral does not need to be capitalized.
Capitalize "Aunt" when it is used as a proper noun directly before the person's name, such as "Aunt Jane," "Aunt Mary," or "Aunt Sarah." However, if the word "aunt" is used informally or generically, it is not capitalized, such as "my aunt" or "she is an aunt."
No, the word "revivalist" does not need to be capitalized unless it is at the beginning of a sentence or part of a proper noun.
No, the word "seismograph" does not need to be capitalized unless it is at the beginning of a sentence or part of a title.
No it does not need to be.
No, the word "motorcycles" does not need to be capitalized unless it is at the beginning of a sentence or part of a title.
No, the word "region" does not need to be capitalized in a sentence unless it is the first word of the sentence or part of a proper noun (e.g. "Pacific Northwest region").
No, the word "present" does not need to be capitalized unless it is at the beginning of a sentence or part of a title.
The word citizen does not need to be capitalized.