What is the meaning of buzz?

noun

• Sound of rapid vibration.
  • usage: "the buzz of a bumble bee"
  • synonyms: bombilation, bombination
• A confusion of activity and gossip.
  • usage: "the buzz of excitement was so great that a formal denial was issued"

verb

• Make a buzzing sound.
  • usage: "bees were buzzing around the hive"
  • synonyms: bombinate, bombilate
• Fly low.
  • usage: "Planes buzzed the crowds in the square"
• Be noisy with activity.
  • usage: "This office is buzzing with activity"
  • synonyms: hum, seethe
• Call with a buzzer.
  • usage: "he buzzed the servant"