російську
"Російська" refers to anything related to Russia, including its language, culture, and people. The term is often used to describe the Russian language, which is one of the most widely spoken languages in the world and serves as the official language of Russia and several other countries.
In a cultural context, "російська" encompasses various aspects of Russian culture, such as literature, music, and traditions. Notable figures like Leo Tolstoy and Pyotr Tchaikovsky have made significant contributions to the arts, showcasing the rich heritage associated with the term.