Idioms
An idiom is defined as - a group of words in a fixed order that has a particular meaning that is different from the meanings of each word on its own.
Idiom:
(in) high gear
Meaning:
at top speed, at full activity
Example:
The preparations for the wedding have been in high gear all week.
List of common idioms, their meanings and examples of their usage in sentences
An idiom is a type of phrase or expression that has a meaning that can't be deciphered by defining the individual words.