When to use solution in Korean
Korean: 해결[ hae-gyeol ]

When to use it
해결 means a solution, or the act of solving a problem. You use it when a problem, worry, or difficult situation is fixed. In Korean, it is often used when talking about solving everyday problems, like at home, school, or while traveling.
Example sentences
집에서 와이파이 문제를 해결했어요.
I solved the Wi-Fi problem at home.
학교에서 선생님이 수학 문제를 해결해 주셨어요.
At school, the teacher helped solve the math problem.
친구와 이야기하고 오해를 해결했어요.
I talked with my friend and solved the misunderstanding.
가게 직원이 환불 문제를 빨리 해결했어요.
The store clerk quickly solved the refund problem.
여행 중에 여권 문제를 대사관에서 해결했어요.
During the trip, I solved the passport problem at the embassy.
공원에서 길을 몰랐지만 지도 앱으로 해결했어요.
I didn't know the way in the park, but I solved it with a map app.