Idioms
Idioms can be a powerful linguistic tool only when they are used in the right way in the right places.
Idiom:
serve as a guinea pig
Meaning:
to allow some kind of test to be performed on someone
Example:
The students served as a guinea pig for the school board's plan to change the school curriculum.
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.