Hides the room from everyone you have not permitted. Same checks as the other owner commands: the service is on, you are inside one of its rooms and you own it (or you hold Manage Channels or Administrator on the server).
In Discord, the bot denies View Channel for @everyone on the room, then denies it on every role that had its own View Channel allow on the room, except roles on the owner's remembered permit list. The room records which roles it changed so /voice show restores exactly those. Hide writes nothing for you. You keep seeing the room through your own entry when the server gives owners Discord's own channel menu (on the Room owners page, "Owners can also use Discord's own channel menu") and Discord did not refuse those permissions on your room. Without that entry the room can be hidden from you too. The bot keeps its own access. Members you permitted keep both View Channel and Connect, and so do roles on that list.
You see a private reply: "👻 Room hidden from everyone but the people you permit." Your panel shows the room as hidden and its Hide button becomes Show.
Good to know
- Hide and lock are separate switches. Hide changes View Channel only; it does not touch Connect. A room can be both hidden and locked.
- Use /voice permit before or after hiding to let specific friends see and join it.
- A room can start hidden. On the Lobbies page each lobby can set it for its own rooms ("How a lobby's rooms start"). On the New rooms page, "Rooms start locked or hidden" sets it for every lobby that does not. Your own /voice prefs hidden:True does it for your rooms.
- On the Rooms page a hidden room is marked as hidden.