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:
a thorn in (someone's) side
Meaning:
a constant bother or annoyance to someone
Example:
The reporter is a thorn in the politician's side.
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.