Art nouveau

Art belle époque
Art nouva
Arte joven
Belle époque art
Jugendstil
Modern style (Art nouveau)
Modernisme (Art nouveau)
Modernismo (Art nouveau)
Nieuwe kunst
Stile Liberty
Style nouille (Art nouveau)

McGraw-Hill dict. art (Art nouveau: Decorative style that flourished on the Continent from about 1890 for a little more than a decade. The term Art Nouveau is one by which style is best known. It was called Jugendstil in Germany; Moderismo in Spain, and in Italy Stile Liberty, after Liberty & Co.)
Dict. art: v. 2, p. 562 (Art Nouveau: the variety of other names by which the style is known are an indication of its multifarious character. They include: Modern style; Style nouille (Belgium); Art belle époque (France); Jugendstil (Germany and Austria); Arte joven (Spain); Modernisme (Catalonia); Art nuova, Stile Liberty (Italy); Nieuwe kunst (Netherlands))