Idioms
An idiom is defined as - a group of words in a fixed order that has a particular meaning that is different from the meanings of each word on its own.
Idiom:
long face
Meaning:
a sad look, a disappointed look
Example:
Our boss had a long face when he came into work this morning.
List of common idioms, their meanings and examples of their usage in sentences
The language peculiar to a people or to a district, community, or class