IDIOM

n. 1 language, tongue, speech, vernacular, dialect, argot, patois, jargon, cant, idiolect, parlance, façon de parler, phraseology The play is written in a rather old-fashioned idiom 2 expression, (set) phrase, phrasing, locution, cliché The term red herring , an idiom meaning 'false trail', is used of something which is neither red nor a herring