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:
other fish to fry
Meaning:
other more important things to do
Example:
I think that the man has other fish to fry and will not be happy to continue with his present job.
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