An expression in the usage of a language that is peculiar to itself either in having a meaning that cannot be derived from the conjoined meanings of its elements or in its grammatically atypical use of words.
Idiom:
within calling distance
Meaning:
close enough to hear someone call
Example:
We were within calling distance of the men in the boat.
List of common idioms, their meanings and examples of their usage in sentences
The language peculiar to a people or to a district, community, or class