Tonguebind

You attempt to bind the tongue of a creature within range, forbidding it from saying certain things, no matter the language used. The target must make a Charisma saving throw. If the target is immune to being charmed, it automatically succeeds on its saving throw. On a failed save, you can apply one of the following effects to the target:

Word Bind. You forbid the creature from uttering a particular word and all of its synonyms. The word you choose can be a proper noun, such as the creature’s own name; a common noun, such as “city” or “fire”; or a verb, such as “fight” or “beg”.

Fact Bind. You forbid the creature from communicating a particular fact, such as “There is a plot to kill the king”, or “The castle is on fire”.

For the duration, the target cannot communicate the forbidden word or fact in any way, shape or form. It cannot speak it, write it, pantomime it, perform it or communicate it via telepathy, or through the use of a spell or other magical effect.

A single creature can only be under the effect of one instance of this spell at a time. A remove curse or greater restoration spell cast on an affected creature ends the spell early.

At Higher Levels. If you cast this spell using a spell slot of 4th level or higher, the duration is concentration, up to 8 hours. If you use a spell slot of 5th level or higher, the duration is 24 hours. If you use a spell slot of 6th level or higher, the duration is 10 days. If you use a 7th level spell slot, the spell lasts until it is dispelled. Using a spell slot of 5th level or higher grants a duration that doesn't require concentration.