eu

(noun) a bivalent and trivalent metallic element of the rare earth group. Synonyms: europium, Eu, atomic number 63.

(noun) an international organization of European countries formed after World War II to reduce trade barriers and increase cooperation among its members. Synonyms: European Union, EU, European Community, EC, European Economic Community, EEC, Common Market, Europe. Example: "He tried to take britain into the europen union."