This is the 19003rd most frequent Korean word.
아내인
"아내인" is not a standard Korean word. It might be derived from "아내," meaning "wife," combined with a grammatical component. Context is needed for clarification.
Here, '아내인' is used as an object in the sentence, referring to 'wife.' It is marking the word 'wife' as being emphasized or linked.
그는 아내인을 위해 꽃을 샀다.
He bought flowers for his wife.
In this case, '아내인' describes a person who is currently a wife, acting as an attributive modifier for '사람' (person).
책은 아내인 사람에게 추천하고 싶어요.
I want to recommend the book to someone who is a wife.
Here, '아내인' specifies the friend's marital status as being a wife, providing additional detail.