This is the 10764th most frequent Korean word.
규명했다
"규명했다" means "investigated" or "identified."
The phrase '진상을 규명했다' means 'investigated the truth,' with '규명했다' indicating the action of definitively uncovering or explaining details of the matter.
사건의 진상을 규명했다.
The truth of the incident was investigated.
Here '문제의 원인을 규명했다' utilizes '규명했다' to describe the resolution or detailed explanation of the problem's origin as posed by the student.
학생이 제기한 문제의 원인을 규명했다.
The cause of the issue raised by the student was identified.
This example contextualizes '규명했다' in relation to critically assessing the validity or soundness of someone's claim or argument.