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:
take (someone) for granted
Meaning:
to accept someone without gratitude or as a matter of course
Example:
Everybody takes the office clerk for granted and nobody ever thanks her.
List of common idioms, their meanings and examples of their usage in sentences
An idiom is a group of words, or in other words, a phrase that has a meaning other than its literal meaning of the words in it.