This is the 728th most frequent Bulgarian word.
чарлз
The Bulgarian word "чарлз" is a transliteration of the English name "Charles."
Here, 'Чарлз' is a proper noun, used as a person's name.
Чарлз работи в библиотеката.
Charles works in the library.
In this context, 'Чарлз' acts as a defined subject, like a nickname or main topic of focus.
Чарлзът беше център на дискусията.
The Charles was the center of the discussion.
'Чарлз' here refers to a title or specific entity being referred to.