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:
out of courtesy
Meaning:
in order to be polite to someone
Example:
We phoned our customers out of courtesy to tell them about the late arrival of the products.
List of common idioms, their meanings and examples of their usage in sentences
Idioms can be a powerful linguistic tool only when they are used in the right way in the right places.