Idioms
An idiom is a group of words, or in other words, a phrase that has a meaning other than its literal meaning of the words in it.
Idiom:
an open secret
Meaning:
a secret that so many people know about that it is no longer a secret
Example:
It is an open secret that I will be leaving my company next month.
List of common idioms, their meanings and examples of their usage in sentences
An idiom is defined as - a group of words whose meaning is different from the meanings of the individual words.