Meaning of co-aunt | Babel Free

Definitions

1. of a woman, an aunt of one's niece or nephew who is not one's sister; a co-sister-in-law as common aunt to the children of two women's married siblings.
2. a woman's sister, as aunt in common to the children of a third sibling

Examples

“A few years ago, my sister and co-aunt Judy started flying [our niece and nephew] Violet and Dash down to California to spend a week with her”

CEFR level