Style of expression is a broad term that encompasses the various ways in which people communicate. IDIOM is a phrase or expression that has a figurative meaning, often one that is different from its literal meaning. VEIN is a particular style or manner of expression, often associated with a particular author or genre. VOICE is the distinctive style or tone of an author or speaker, which can be used to convey emotion or opinion. Together, these three terms represent the various ways in which people express themselves.