"Русская" refers to anything related to the Russian culture, language, or people. It is often used to describe the Russian language itself, which is a Slavic language and one of the most widely spoken languages in the world. The term can also encompass various aspects of Russian heritage, including traditions, art, and cuisine. In a broader context, "русская" can signify the identity of the Russian people, who have a rich history and diverse cultural influences. This includes famous figures such as Leo Tolstoy and Pyotr Tchaikovsky, who have made significant contributions to literature and music, respectively.