Idioms
Idioms are phrases which cannot be understood simply by looking at the meaning of the individual words in the phrase.
Idiom:
on the road
Meaning:
travelling somewhere (especially as a salesman or performer)
Example:
The man is a salesman and is often on the road.
List of common idioms, their meanings and examples of their usage in sentences
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.