This is the 12657th most frequent Korean word.
대진이
"대진이" refers to a match-up, pairing, or arrangement, often used in the context of sports or competitions.
Here, "대진이" is used as a subject to denote someone named Daejin, following informal usage.
대진이가 학교에 갔어요.
Daejin went to school.
In this sentence, "대진이" is the subject with topic marker '는', explaining the characteristic of an individual named Daejin.
대진이는 축구를 잘해요.
Daejin is good at soccer.
"대진이" in this sentence indicates the person named Daejin as part of a relative clause where they are the subject of the action of giving a gift.