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:
go into hiding
Meaning:
to conceal oneself in a hiding place for a period of time
Example:
The bank robbers went into hiding after the bank robbery.
List of common idioms, their meanings and examples of their usage in sentences
Idioms can be a powerful linguistic tool only when they are used in the right way in the right places.