Idioms are expressions that have a figurative meaning different from the literal meaning of the words. They are often used to express emotions or ideas in a creative way. The term 'IDIOM' can refer to phrases, ARGOTS, SAYINGS, and parlances. Phrases are a group of words that express an idea but do not form a complete sentence. ARGOTS are specialized vocabularies used by certain groups of people. SAYINGS are short, often witty expressions that convey a message. Parlances are informal ways of speaking that are characteristic of a particular region or group of people.