Idioms
An idiom is a widely used saying or expression containing a figurative meaning that differs from the phrase's literal meaning.
Idiom:
for once
Meaning:
only one time
Example:
For once, my friend listened to what I was saying. Usually he ignores me.
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.