Idioms
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.
Idiom:
ride roughshod over (someone or something)
Meaning:
to treat someone or something with disdain or scorn
Example:
The new teacher is riding roughshod over the needs of the students.
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