This is the 8205th most frequent Korean word.
kaist에
"Kaist에" means "at KAIST" or "to KAIST," referring to the Korea Advanced Institute of Science and Technology, with "에" indicating location or direction.
Here, "kaist에" indicates the destination or target of the action of applying.
나는 kaist에 지원했다.
I applied to KAIST.
In this sentence, "kaist에" specifies the institution where the action of enrollment occurs.
kaist에 많은 학생들이 입학한다.
Many students enroll in KAIST.
The phrase "kaist에" here marks the physical location to which the action of going is directed.