This is the 6227th most frequent Turkish word.
çeviren
"Çeviren" means "translator" or "the one who translates."
In this sentence, 'çeviren' is used as a participle to describe 'the person' who performed the action of translating the book.
Bu kitabı çevren kişi çok başarılı bir çevirmen.
The person who translated this book is a very skilled translator.
Here, 'çeviren' is used as a noun referring to the specific individual responsible for translating.
Filmden önce jenerikte çeviren olarak onun adı yazıyordu.
Before the movie, their name was listed in the credits as the translator.
In this usage, 'çeviren' acts as a descriptor indicating the person who completed the act of translating in this context.