This is the 3153rd most frequent Korean word.
걱정
Worry; concern.
걱정 is used here to express worry or anxiety about a possible future event (rain tomorrow).
내일 비가 올까봐 걱정돼.
I am worried that it might rain tomorrow.
걱정 is used to express concern for someone's well-being.
친구의 건강에 대해 걱정하고 있어.
I am worrying about my friend's health.
걱정 is mentioned as something that can be relieved or let go after a stressful situation ends.