Meaning of the word "peace of mind" in English

What does "peace of mind" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

peace of mind

US /piːs əv maɪnd/

UK /piːs əv maɪnd/

a state of mental or emotional tranquility; freedom from anxiety or distress

Example:

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Knowing my children are safe gives me great peace of mind.

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I bought travel insurance for peace of mind during my trip.