This is the 11292nd most frequent Korean word.
김기윤
"김기윤" is a Korean proper noun, typically used as a personal name. It does not have a specific definition beyond being a name.
Here, '김기윤' is used as a proper noun, referring to a person's full name.
김기윤은 학생입니다.
Kim Kiyoon is a student.
In this sentence, '김기윤' is followed by '씨', a respectful title used when addressing or talking about someone formally.
저는 김기윤 씨를 만났어요.
I met Mr. Kim Kiyoon.
Here, '김기윤' is in the subject position and is modified by the following clause explaining their contribution.