Noun buzzer has 2 senses
  1. 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 bell
    Derived forms: verb buzz1, verb buzz4
  2. buzzer - a signaling device that makes a buzzing sound
    --2 is a kind of
    signaling device
    Derived forms: verb buzz1, verb buzz4
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