This is the 44th most frequent Arabic word.
الروسي
The Arabic word "الروسي" means "the Russian" in English.
In this sentence, 'الروسي' functions as an adjective describing the noun 'الكتاب' (book), meaning that the book is Russian in origin or context.
هذا الكتاب الروسي مثير للاهتمام.
This Russian book is interesting.
Here, 'الروسي' is an adjective modifying the noun 'الرجل' (man), indicating the nationality or ethnicity of the man being described.
الرجل الروسي يتحدث العربية بطلاقة.
The Russian man speaks Arabic fluently.
In this sentence, 'الروسية' is the feminine adjective form tied to the noun 'اللغة' (language), specifying it as the Russian language.