put someone's mind at rest

US /pʊt ˈsʌm.wʌnz maɪnd æt rɛst/
UK /pʊt ˈsʌm.wʌnz maɪnd æt rɛst/
"put someone's mind at rest" picture
1.

to tell someone something that makes them stop worrying

:
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I called her to put her mind at rest about the children.
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The doctor's explanation helped to put my mind at rest.
:
lay someone to restcross someone's mindslip someone's mindrestput someone on holdput someone in the pictureput someone to death