For the duration, no sound can be created within or pass through a 20-foot-radius sphere centered on a point you choose within range. Any creature or object entirely inside the sphere is immune to thunder damage, and creatures are deafened while entirely inside it.
Casting a spell that includes a verbal component is impossible there.
How Silence plays
For up to 10 minutes while you concentrate, no sound can be made inside or pass through a 20-foot-radius sphere centered on a point within 120 feet. Creatures entirely inside are deafened, anything entirely inside is immune to thunder damage, and nobody in the sphere can cast a spell with a verbal component.
Most spells have a verbal component, so a caster standing in Silence is left with the few that don’t. The sphere doesn’t move, though, so an enemy caster who walks out of it can cast normally again. It works best on casters who can’t easily leave: surrounded by your fighters, stuck on a narrow ledge or held by a grapple.
When to pick Silence
Against enemy spellcasters. A mage or priest caught in the sphere loses almost everything it can cast until it moves out.
For stealth. Nothing inside makes a sound, so it hides footsteps, breaking doors and fights from anyone outside the sphere. Cast it as a ritual before you move in.
Mind your own casters. Your party’s wizard can’t cast Fireball from inside it either. Place it where the enemy stands, not where your side will be.
Common questions
Can you cast spells inside Silence?
Only spells without a verbal component. Spells that need just somatic or material components, like Counterspell, still work.
Can I cast a spell into Silence from outside?
Yes. Silence only stops spells cast by someone inside the sphere. You can target a creature in it with anything, as long as its effect isn’t thunder damage, which creatures entirely inside are immune to.
Does Silence need concentration?
Yes, up to 10 minutes. It’s also a ritual, so a cleric who has it prepared or a bard who knows it can cast it in 10 extra minutes without a spell slot. Rangers can’t cast rituals under the 2014 rules.
Does Silence move with me?
No. It’s centered on a point you choose and stays there. Casters inside can walk out of it.
Does Silence stop Shatter and Thunderwave?
Anyone inside can’t cast them, and anything entirely inside is immune to thunder damage, so a creature in the sphere takes no damage from them either.
The 2024 Player’s Handbook revised many spells, and the SRD 5.2 carries the new text. What changed from the 2014 version above:
Same level, casting time, range, components, duration and dice; the text is reworded for the 2024 rules glossary.
Casting time
Action or Ritual
Range
120 feet
Components
V, S
Duration
Concentration, up to 10 minutes
School
Illusion
Level
2
Classes
Bard, Cleric, Ranger
Tags
concentration, ritual
For the duration, no sound can be created within or pass through a 20-foot-radius Sphere centered on a point you choose within range. Any creature or object entirely inside the Sphere has Immunity to Thunder damage, and creatures have the Deafened condition while entirely inside it. Casting a spell that includes a Verbal component is impossible there.
2024 version from the SRD 5.2. Most tables settle on one edition, so check which one yours uses.