Idioms
A group of words which have a different meaning when used together from the one they would have if you took the meaning of each word separately.
Idiom:
tough row to hoe
Meaning:
a difficult task to undertake
Example:
Learning written Chinese was a tough row to hoe for the university 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