Idioms
Idioms are phrases which cannot be understood simply by looking at the meaning of the individual words in the phrase.
Idiom:
know-it-all
Meaning:
a person who acts as if he or she knows everything
Example:
The librarian is a know-it-all and nobody likes to be around him.
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 other than its literal meaning of the words in it.