German language, German Deutsch, official language of both Germany and Austria and one of the three official languages of Switzerland. German belongs to the West Germanic group of the Indo-European language family, along with English, Frisian, and Dutch (Netherlandic, Flemish).Jan 8, 2009. Some words in German are Bitte. bitt-er which is You're welcome, another one is Guten Abend. hal-lo/goot-en ar-bent which means Good evening.