Eurovoc is a multilingual thesaurus maintained by the Publications Office of the European Union. It exists in 22 official languages of the European Union (Bulgarian, Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Italian, Hungarian, Latvian, Lithuanian, Maltese, Polish, Portuguese, Romanian, Slovak, Slovene, Spanish and Swedish), as well as Basque, Catalan, Croatian, Russian and Serbian. Eurovoc is used by the European Parliament, the Office for Official Publications of the European Union, the national and regional parliaments in Europe, some national government departments, and European organisations. It serves as the basis for the domain names used in the European Union's terminology database: Inter-Active Terminology for Europe.