to  put one's  mind  at  rest
<abbr style="text-decoration: underline;" title="put / set" > put</abbr>
pʊt
poot
<i>one's</i>
wʌnz
vanz
mind
maɪnd
maind
at
æt
āt
<abbr style="text-decoration: underline;" title="rest / ease" > rest</abbr>
rɛst
rest

Definition & Meaning of "put one's mind at rest"in English

to put one's mind at rest
01

to assure someone that they no longer need to worry about a particular person or thing 

to [put|set] {one's} [mind] at (rest|ease) definition and meaning
Idiom

What is the origin of the idiom "put one's mind at rest" and when to use it?

The origin of the idiom "put one's mind at rest" can be traced to the concept of achieving mental calm and tranquility. The phrase draws upon the idea that when someone's mind is troubled or restless due to worries or anxieties, there is a need to address those concerns and provide reassurance.

Examples
The doctor put my mind at ease by saying the test results were normal. 
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