This is the 16663rd most frequent Korean word.
사용하였다
"사용하였다" means "used."
The word "사용하였다" is used here in past tense, indicating the efficient use of an item.
그는 이 물건을 매우 효율적으로 사용하였다.
He used this object very efficiently.
In this sentence, "사용하였다" is applied to explain the usage of a software tool for a specific purpose.
프로그램을 세팅하는 데 사용하였다.
It was used to set up the program.
Here, "사용하였다" describes the adoption and implementation of a new method.