Idioms
The language peculiar to a people or to a district, community, or class
Idiom:
rest assured
Meaning:
to be assured, to be certain
Example:
"You can rest assured that I will be at work early every morning this week."
List of common idioms, their meanings and examples of their usage in sentences
An idiom is a type of phrase or expression that has a meaning that can't be deciphered by defining the individual words.