Idioms
An idiom is a widely used saying or expression containing a figurative meaning that differs from the phrase's literal meaning.
Idiom:
keep a tight rein on (someone or something)
Meaning:
to strictly watch and control someone or something
Example:
Our principal keeps a tight rein on what is being taught in the school.
List of common idioms, their meanings and examples of their usage in sentences
An idiom is a group of words, or in other words, a phrase that has a meaning different from the literal meaning of the words in it.