buzzer

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. a push button at an outer door that gives a ringing or buzzing signal when pushed
• Syn:
doorbell, bell
• Derivationally related forms:
buzz
• Hypernyms:
push button, push, button
• Hyponyms:
night bell
2. a signaling device that makes a buzzing sound
• Derivationally related forms:
buzz
• Hypernyms:
signaling device

• Từ đồng nghĩa / Synonyms:
  doorbell, bell