This is the 18579th most frequent Korean word.
시행했다
"Implemented" or "carried out."
In this sentence, '시행했다' is used to express the action of implementing or putting into effect a new policy.
그는 새로운 정책을 시행했다.
He implemented a new policy.
Here, '시행했다' indicates the government's effort to put into practice systems aimed at improving citizen welfare.
정부는 국민의 복지를 위해 여러 제도를 시행했다.
The government implemented various systems for the welfare of the citizens.
In this example, '시행했다' is used to describe the school's action of introducing and executing a new educational initiative.