This is the 11307th most frequent Korean word.
김민석이
"김민석이" refers to "Kim Min-seok," a common Korean name, with "이" indicating the subject particle in a sentence.
Here, '김민석이' refers to the person Kim Minseok, acting as the subject of the sentence with the subject marker '이'.
김민석이는 학교에 갔습니다.
Kim Minseok went to school.
In this sentence, '김민석이' specifies whose preference is being talked about, taking the subject marker role for Kim Minseok.
김민석이 좋아하는 음식은 떡볶이입니다.
Kim Minseok's favorite food is tteokbokki.
Here, '김민석이' serves as the subject indicating who is proficient in soccer, introduced with the subject marker '이'.