An idiom is a phrase or expression that has a figurative meaning that is different from the literal meaning of the words.
Examples:
* "Kick the bucket" means to die, not to literally kick a bucket.
* "Break a leg" means good luck, not to actually break a leg.
* "It's raining cats and dogs" means it's raining heavily, not that animals are falling from the sky.
Other words or phrases that are not meant to be taken literally but figuratively include:
* Metaphor: A figure of speech that compares two unlike things without using "like" or "as."
* Simile: A figure of speech that compares two unlike things using "like" or "as."
* Hyperbole: An exaggeration used for emphasis or humor.
* Personification: Giving human qualities to inanimate objects or animals.