1. a bell or buzzer at the entrance of a building that visitors can ring to announce their arrival

Examples

• She pressed the doorbell and waited for someone to answer.
• The doorbell rang just as we were sitting down to dinner.
• Our doorbell is broken, so visitors have to knock on the door.
• He installed a video doorbell to see who was at the front door.
• The delivery driver rang the doorbell twice before leaving the package.
• We heard the doorbell chime from upstairs.
• The old house had an ornate brass doorbell by the entrance.