This is the 5375th most frequent Turkish word.
konudur
"Konudur" means "it is the subject" or "it is the topic."
Here, 'konudur' means 'is a topic', serving as the predicate describing 'bu kitap'.
Bu kitap, dünya tarihi açısından önemli bir konudur.
This book is an important topic in terms of world history.
In this sentence, 'konudur' signifies that art is a subject or area of communication, forming the predicate of the sentence.
Sanat, insanlar arasındaki iletişimin bir konusudur.
Art is a subject of communication among people.
In this context, 'konudur' declares 'küresel ısınma' as a topic within the predicate, linking the subject to its descriptor.