This is the 16322nd most frequent Korean word.
비서실장인
"비서실장인" translates to "Chief Secretary" or "Head of the Secretary's Office" in English.
Here, '비서실장인' ('being the chief secretary') is used as an adjective phrase to describe '그' (he), indicating his role.
비서실장인 그는 회사의 중요한 결정을 도와줍니다.
The chief secretary helps make important decisions for the company.
In this sentence, '비서실장인' ('being the chief secretary') explains the reason or capacity in which the subject attended the meeting.
비서실장인 자격으로 회의에 참석했습니다.
I attended the meeting in the capacity of the chief secretary.
Here, '비서실장인' ('being the chief secretary') modifies '사람' (person), specifying the required individual as the chief secretary.