بلکه

بلکه

"بلکه" means "but rather" or "instead."

بلکه is employed to introduce a following idea that further contrasts with the preceding one, making it more specific.

این مشکل نه‌تنها حل نشده است، بلکه پیچیده‌تر نیز شده است.

Not only has this issue not been resolved, but it has also become more complicated.

بلکه illustrates a distinction or substitution between two contrasting intentions in this sentence.

او نه‌ برای کمک بل‌که برای دیدن آمد.

He came not to help, but to watch.

بلکه is used here to add emphasis and provide an additional contrasting statement.

من نه‌تنها با این نظر موافق نیستم، بلکه آن را اشتباه می‌دانم.

Not only do I disagree with this opinion, but I also consider it wrong.