This is the 5207th most frequent Korean word.
다했다
"다했다" means "finished" or "completed."
In this sentence, '다했다' is used to express the completion of one's responsibilities or duties.
그는 자신의 역할을 다했다.
He fulfilled his role completely.
Here, '다했다' indicates someone put their utmost effort into a task.
그녀는 시험 준비에 최선을 다했다.
She gave her best effort in preparing for the test.
This usage of '다했다' conveys a sense of finishing or completing something that was planned.