This is the 1616th most frequent Korean word.
발견했다
"Discovered" or "found."
In this sentence, '발견했다' is used to describe the act of discovering or finding something previously unknown or unremembered during the process of organizing.
오래된 사진첩을 정리하다가 어린 시절 사진을 발견했다.
While organizing an old photo album, I discovered childhood photos.
Here, '발견했다' indicates the act of finding crucial information through investigation or analysis.
남은 단서를 통해 사건 해결의 중요한 단서를 발견했다.
Through the remaining clues, a critical hint for solving the case was discovered.
In this context, '발견했다' is used to describe the achievement of identifying or uncovering new knowledge or methods through extensive study or effort.