Les Six Syllabification: (Les Six)Pronunciation: /lā ˈsēs/ (also the Six)Definition of Les Six a group of six Parisian composers (Louis Durey, Arthur Honegger, Darius Milhaud, Germaine Tailleferre, Georges Auric, and Francis Poulenc) formed after World War I, whose music represents a reaction against Romanticism and Impressionism. Origin:French, literally 'the Six'Les Six in other Oxford dictionaries Definition of Les Six in the British & World English dictionary