- doorbell, bell, buzzer - a push button at an outer door that gives a ringing or buzzing signal when pushed
--1 is a kind of push button, push, button
--1 has particulars: night bellDerived forms: verb buzz1, verb buzz4 - buzzer - a signaling device that makes a buzzing sound
--2 is a kind of signaling device
Derived forms: verb buzz1, verb buzz4