Nouns

(n)buzz, bombilation, bombinationsound of rapid vibration“the buzz of a bumble bee”
(n)buzza confusion of activity and gossip“the buzz of excitement was so great that a formal denial was issued”

Verbs

(v)buzz, bombinate, bombilatemake a buzzing sound“bees were buzzing around the hive”
(v)buzzfly low“Planes buzzed the crowds in the square”
(v)hum, buzz, seethebe noisy with activity“This office is buzzing with activity”
(v)buzzcall with a buzzer“he buzzed the servant”