An idiom is a widely used saying or expression containing a figurative meaning that differs from the phrase's literal meaning.
Idiom:
the silence is deafening
Meaning:
the silence is so great that one becomes uncomfortable, the silence is so great that it suggests the disapproval of something
Example:
The silence was deafening at the meeting when nobody stood up to challenge the speaker for his extreme remarks.
List of common idioms, their meanings and examples of their usage in sentences
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.