This is the 8013th most frequent Turkish word.
köseoğlu
"Köseoğlu" means "son of Köse," with "Köse" being a surname or nickname often referring to someone without a beard.
In this sentence, 'Köseoğlu' is used as a family name, indicating a member of a family traditionally associated with the title Köseoğlu.
Köseoğlu, köyün en bilgili adamıdır.
Köseoğlu is the most knowledgeable man in the village.
Here, 'Köseoğlu' is referred to as a legendary or notable family or individual.
Eski hikayelerde, Köseoğlu adı sıkça geçer.
In old tales, the name Köseoğlu is frequently mentioned.
In this sentence, 'Köseoğlu' is used as the name of the restaurant, indicating its possible ownership or association with a family bearing this name.