No, German is not a Slavic language. German is a West Germanic language, which is part of the larger Germanic language family. This family also includes languages like English, Dutch, and Swedish.
Slavic languages, on the other hand, belong to the Balto-Slavic branch of the Indo-European language family. This group includes languages such as Russian, Polish, Czech, and Bulgarian. While both Germanic and Slavic languages are part of the Indo-European family, they are distinct branches with different linguistic characteristics.
German and Slavic languages have different grammar structures, vocabularies, and phonetic systems. For example, German uses articles (der, die, das) and has a relatively rigid sentence structure, while Slavic languages often have more flexible word orders and do not use articles in the same way.
In summary, German and Slavic languages are part of different branches within the Indo-European language family and are not closely related.