Slovak, is a West Slavic language of the Czech–Slovak group, written in Latin script. It is part of the Indo-European language family, and is one of the Slavic languages, which are part of the larger Balto-Slavic branch. Spoken by approximately 5 million people as a native language, primarily ethnic Slovaks, it serves as the official language of Slovakia and one of the 24 official languages of the European Union.