English Dictionary

co-aunt

noun

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.

My co-aunt is coming to visit us next week.

意味（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.

意味（2）

a woman's sister, as aunt in common to the children of a third sibling

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