rest assured

Idioms

You can be sure, as in Rest assured that the police will recover your diamonds. This expression uses assured in the sense of “certain” or “confident,” a usage dating from the early 1500s.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

But rest assured, he will say it in a quite serious way if the time comes.

From Slate • Jun. 19, 2026

But they can rest assured: Mbappé has no political aspirations.

From The Wall Street Journal • Jun. 16, 2026

"You can rest assured that peace is guaranteed here."

From Barron's • Jun. 10, 2026

But rest assured, by then they’ll have revealed exactly who they are.

From Los Angeles Times • Mar. 25, 2026

“You may rest assured that she will be punished,” Mr. Crouch added coldly.

From "Harry Potter And The Goblet Of Fire" by J. K. Rowling

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023