This is the 4262nd most frequent Turkish word.
rusların
"Rusların" means "Russians'" (possessive form, indicating something belonging to Russians).
Genitive case, indicating possession ('Ruslar'ın tarihi' means 'the history of the Russians').
Rusların tarihi oldukça ilginçtir.
The history of the Russians is quite interesting.
Genitive case, indicating possession ('Ruslar'ın yaşadığı ev' means 'the house of the Russians').
Rusların yaşadığı ev kocamandı.
The house in which the Russians lived was huge.
Genitive case, describing characteristic or relationship ('Rusların dili' means 'the language of the Russians').