Learn Farsi: در این بخش اختصاصی، هیچ‌کس جز مدیر اجازه‌ی ورود ندارد. - In this exclusive section, nobody except the manager has entry permission.

In Farsi, words like هیچ‌کس (nobody) always require a negative verb, creating a double negative. Even though جز مدیر means "except the manager," the main subject is still هیچ‌کس, so the verb must be negative.

Could I use به جز instead of جز here?

Yes, جز and به جز are interchangeable. Using هیچ‌کس به جز مدیر would mean exactly the same thing. Both are used with a negative verb to create an exclusive restriction, meaning "only the manager."

Why is there an explicit ی attached to the word اجازه?

This is the Ezafe connector linking "permission" (اجازه) to "entry" (ورود). Because اجازه ends in a silent 'h' (pronounced 'e'), the Ezafe must be written as ی and pronounced as "ye" (اجازه‌ی ورود).

What is the exact meaning of اختصاصی in this context?

اختصاصی (ekhtesasi) means "exclusive," "private," or "dedicated." It is used when something is allocated or set apart for a specific person or purpose, fitting perfectly with a restricted section.