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:
cave in (to someone or something)
Meaning:
to weaken and be forced to give something up
Example:
The company caved in to the union`s demand for more money.
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