Idioms
An idiom is defined as - a group of words whose meaning is different from the meanings of the individual words.
Idiom:
on (someone's) back
Meaning:
making demands or criticizing someone, being an annoyance or bother to someone
Example:
My boss has been on my back all week trying to get me to finish my monthly report.
List of common idioms, their meanings and examples of their usage in sentences
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.