This is the 6156th most frequent Arabic word.
يزعم
"يزعم" means "claims" or "alleges."
Here, 'يزعم' is utilized to indicate a claim or assertion by Ahmed about an ability, which might be ambitious or questionable.
يزعم أحمد أن بإمكانه تسلق الجبل في يوم واحد.
Ahmed claims that he can climb the mountain in one day.
'يزعم' here shows an allegation or statement presented without evidence about the story in the book.
يزعم الكتاب أن هذه القصة حقيقية.
The book alleges that this story is true.
The usage of 'يزعم' in this context reflects a speculation or a statement made by an unspecified group with uncertain validity.