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3. set (one's/someone's) mind to rest

set (one's/someone's) mind to rest

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set (one's/someone's) mind to rest

To assuage or relieve someone's or one's own worry, anxiety, dread, fear, etc. I know you're anxious to hear how your father is doing after the surgery, so let me set your mind to rest: he's going to make a full recovery. I'm trying to set my mind to rest about these debts, but I just can't get it out of my head.

See also: mind, rest, set