When to use to get better in Korean
Korean: 좋아지다[ joh-a-ji-da ]

When to use it
좋아지다 means "to get better" or "to improve." You use it when something was not good before, but then becomes better, like your health, mood, weather, or skills. It is a very common everyday word for positive change.
Example sentences
감기가 많이 좋아졌어요.
My cold got much better.
오후에 날씨가 좋아졌어요.
The weather got better in the afternoon.
한국어 실력이 조금 좋아졌어요.
My Korean skills got a little better.
친구와 이야기하고 기분이 좋아졌어요.
I talked with my friend, and my mood got better.
약을 먹고 배가 좋아졌어요.
I took medicine, and my stomach got better.
좀 쉬고 나서 몸이 좋아졌어요.
After resting a little, my body felt better.