Idioms
An idiom is a type of phrase or expression that has a meaning that can't be deciphered by defining the individual words.
Idiom:
gung-ho
Meaning:
to be enthusiastic, to be full of eagerness
Example:
My friend is gung-ho about her new job at the library.
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.