1. doorbell - Noun
2. doorbell - Verb
a push button at an outer door that gives a ringing or buzzing signal when pushed
Source: WordNetDemocracy means that if the doorbell rings in the early hours, it is likely to be the milkman. Winston Churchill
No, you don't need to help me. But if you don't, there's nothing stopping me from calling you up again and again, now that I know you can't kill me. Think of it as me leaning against your Heavenly doorbell... forever. Cassandra Clare
The more Susan waited, the more the doorbell didn't ring. Or the phone. Douglas Adams
You wouldn't believe that I still have the bikers with the caps to the side at my door, ringing the doorbell. Tina Turner
When the doorbell rings at three in the morning, it's never good news. Anthony Horowitz
[After the doorbell rings, right before Secretariat appears]. Craig Ferguson