An expression in the usage of a language that is peculiar to itself either in having a meaning that cannot be derived from the conjoined meanings of its elements or in its grammatically atypical use of words.
Idiom:
nurse a grudge
Meaning:
to keep a feeling of dislike toward someone
Example:
My old boyfriend is still nursing a grudge toward me after three years.
List of common idioms, their meanings and examples of their usage in sentences
Idioms can be a powerful linguistic tool only when they are used in the right way in the right places.