Silence
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.
Silence 5e 2024 vs. 2014 edition differences
The 2024 version allows casting as an action or ritual, whereas 2014 is only action. It specifies "up to 10 minutes" duration, but duration remains functionally the same. The 2024 version grants immunity to thunder damage and the Deafened condition, whereas 2014 states immunity to thunder damage and deafening effect.