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:
hang around
Meaning:
to pass time or stay someplace without any real purpose or aim
Example:
I spent the weekend hanging around with my friends.
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