Idioms
An idiom is a type of phrase or expression that has a meaning that can't be deciphered by defining the individual words.
Idiom:
have a finger in the pie
Meaning:
to be involved in something
Example:
The man has his finger in the pie of many businesses.
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