Description

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.

Silence appears in System Reference Document 5.1. Text from the SRD 5.1 by Wizards of the Coast, CC BY 4.0.