What is another word for "idiom"?

Roget's Thesaurus (1911) lists these synonyms for "idiom": abuse, accent, ambiguity, anagram, antiphrasis, archaic, archaism, argot, arrange, babu, barbarism, black, brogue, broken, byword, call, cant, card, circumlocution, clinch, clothe, coin, coiner, colloquial, colloquialism, confusion, corruption, couch, denominate, designate, dialect, dog, double, dub, express, expression, figure, find, flash, gibberish.