Idioms
The language peculiar to a people or to a district, community, or class
Idiom:
incumbent upon (someone) to (do something)
Meaning:
necessary for someone to do something
Example:
It is incumbent upon the next mayor to try and do something about crime in the city.
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 different from the literal meaning of the words in it.