This is the 15578th most frequent Korean word.
보고서
Report.
In this sentence, '보고서' refers to a formal report or document that needs to be written or created.
보고서를 작성해야 합니다.
I need to prepare a report.
Here, '보고서' is used to describe an existing document containing detailed information.
이 보고서는 매우 정보가 풍부하다.
This report is very informative.
In this instance, '보고서' represents a report that has been completed and handed in to someone for evaluation or review.