An aunt is a person who is the sister of a parent. Aunts are second-degree relatives and share 25% genetic overlap when they are the full sister of one of the biological parents. Known alternate terms include Auntie or Aunty. A half-aunt is a half-sister of one's parent and is a third-degree relative with 12.5% genetic overlap. A aunt-in-law is a wife of one's uncle, direct genetic overlap will typically be 0%, as this person entered the family through marriage and typically is not a blood relative. A aunt-in-law can also be a aunt of one's spouse. A co-aunt-in-law is a wife of one's uncle of one's spouse. A stepaunt is a stepsister of one's parent or a sister of one's stepparent.
A great-aunt/grandaunt is the sister of one's grandparent. A half-great-aunt/half-grandaunt is the half-sister of one's grandparent. A great-aunt-in-law/grandaunt-in-law is the wife of one's great-uncle/granduncle. A great-aunt-in-law/grandaunt-in-law can also be is the great-aunt/grandaunt of one's spouse. A co-great-aunt-in-law/co-grandaunt-in-law is a wife of one's great-uncle/granduncle of one's spouse.
A great-great-aunt/great-grandaunt is the sister of one's great-grandparent. A half-great-great-aunt/half-great-grandaunt is the half-sister of one's great-grandparent. A great-great-aunt-in-law/great-grandaunt-in-law is the wife of one's great-great-uncle/great-granduncle. A great-great-aunt-in-law/great-grandaunt-in-law can also be is the great-great-aunt/great-grandaunt of one's spouse. A co-great-great-aunt-in-law/co-great-grandaunt-in-law is a wife of one's great-great-uncle/great-granduncle of one's spouse.
- All pages beginning with "Aunt" – includes many articles with titles "Aunt [name]."
- Auntie (disambiguation) (also includes "Aunty")
- The dictionary definition of aunt at Wiktionary
- The dictionary definition of grandaunt at Wiktionary
- The dictionary definition of great-aunt at Wiktionary
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