Meanings

sink; settleFor something on the surface of or in the midst of water, etc., to go down to the bottom.
calm down; subsideFor a bad weather to become warmer or for a strong natural phenomenon to become weaker.
calm down; subdueFor a strong emotion or feeling to fade away slowly.
abate; subsideFor the symptom of a disease to get better.
calm down; subdueFor a boisterous situation to become quiet.
be tranquilizedFor a voice, facial expression, etc., to sink.

Examples from Lessons (3)

슬픈 장면을 다 보고 나면 기분 이 가라앉는 건 당연해.
It's only natural for your mood to sink after watching a sad scene.
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태도 를 그렇게 바꾸는 것 만 으로 도 불안 이 조금 가라앉을까요?
Will simply changing my attitude like that make the anxiety settle down a bit?
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정말 예상 도 못 했던 일 이라서 당황스러움 이 가라앉지 않아.
It was something I truly never expected, so my bewilderment hasn't subsided.
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