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to die down (storm, anger, conflict, etc.); to calm down; to cool off; to abate; to be settled; to be brought under control
to be at peace; to be governed well
to subside (of pain, symptoms, etc.); to be alleviated; to get better; to ease off
嵐が治まるまで屋内で待機することにした。
We decided to stay indoors until the storm died down.
薬を飲んだら咳が治まって楽になった。
After taking the medicine, my cough subsided and I felt better.
彼の怒りはなかなか治まる気配がなかった。
His anger showed no sign of subsiding.