Prohibit

BAN

A formal restriction often imposed by authorities to stop something.

The clue "Prohibit" directly hints at the answer "BAN," as both words mean to officially stop or forbid something. There’s no wordplay or hidden meaning here—it’s a straightforward definition where the answer is a simple synonym for the clue. If you think of laws or rules that restrict actions, "ban" is a common term used in that context.