English to English

noun (n)

• a push button at an outer door that gives a ringing or buzzing signal when pushed(noun.artifact)

  Synonym:
  bell, doorbell
  

  source: wordnet30
• a signaling device that makes a buzzing sound(noun.artifact)

  source: wordnet30
• One who, or that which, buzzes; a whisperer; a talebearer.(noun)

  source: webster1913