Idioms
An idiom is a type of phrase or expression that has a meaning that can't be deciphered by defining the individual words.
Idiom:
an open-and-shut case
Meaning:
something (often a legal matter) that is simple and clear
Example:
It was an open-and-shut case when the judge decided the case of the stolen computer.
List of common idioms, their meanings and examples of their usage in sentences
An idiom is a widely used saying or expression containing a figurative meaning that differs from the phrase's literal meaning.