1. plural of doorbell; devices that make a sound when pressed to signal someone at a door

Examples

• The electrician installed new doorbells in both apartments.
• Many modern doorbells connect to smartphone apps.
• The old house had two doorbells, one for each entrance.
• Smart doorbells can record video when someone approaches.
• We heard several doorbells ringing throughout the neighborhood.
• The delivery driver pressed one of the doorbells but got no answer.