This is the 13965th most frequent Korean word.
맞아야
"맞아야" means "must be correct" or "must fit."
In this sentence, '맞아야' implies that the title should correspond or align with the content of the book.
책의 제목이 내용과 맞아야 합니다.
The title of the book must match its content.
Here, '맞아야' is used to express the requirement of alignment or meeting the expectations for improvement.
학생들은 시험 점수가 기대와 맞아야 성적이 상승합니다.
Students' test scores need to meet expectations for their grades to improve.
In this context, '맞아야' conveys a need for compatibility or agreement between friends in terms of their values.