Silencing Charm

Magically silences the target of the spell.

Similar to Muffliato

References from the canon

• The song of the Fwooper will drive the listener insane and must therefore be sold with a Silencing Charm on it. This charm must be recast on the Fwooper every month (FB).
• Fifth-years work on this spell in Charms using bullfrogs and ravens (OP18).
• Hermione cast this spell on a Death Eater during the Battle of the Department of Mysteries, which caused the spell he used to attack her to be a lot less damaging. He still knocked her out, though, and did "enough damage to be going on with," according to Pomfrey (OP35, OP38).
• After Hermione binds Delphi, Draco uses this spell to make sure that she doesn't call out to Lord Voldemort when he arrives in Godric's Hollow (CC4.11).