To reduce speed or activity.
You need to slow down when driving through this neighborhood.
이 동네를 운전할 때는 속도를 줄여야 합니다.
To become less active or intense.
After the holidays, it's time to slow down and relax.
휴가 후에는 속도를 줄이고 휴식을 취할 시간입니다.