Final answer:
An idiom is an expression that is not meant to be taken literally, with a figurative meaning. Idioms are unique to a particular language.
Step-by-step explanation:
An idiom is an expression that is not meant to be taken literally. It is a phrase or group of words that has a figurative meaning. Idioms are unique to a particular language and often cannot be translated directly. Examples of idioms include 'kick the bucket' (meaning to die) and 'hit the nail on the head' (meaning to say or do something exactly right).
Learn more about Idioms in English