Idioms
An idiom is a group of words, or in other words, a phrase that has a meaning different from the literal meaning of the words in it.
Idiom:
rack one's brains
Meaning:
to try hard to think of something or remember something
Example:
I have been racking my brains all day trying to remember the man's name.
List of common idioms, their meanings and examples of their usage in sentences
An idiom is defined as - a group of words whose meaning is different from the meanings of the individual words.