noun

a low, continuous humming or murmuring sound, made by or similar to that made by an insect.

the buzz of the bees

hum,humming,buzzing,murmur,drone,whir,whirring,fizz,fizzing,fuzz,hiss,singing,whisper,zizz,tinnitus,bombination,bombilation,susurration,susurrus,sibilation

verb

make a low, continuous humming sound.

mosquitoes were buzzing all around us

hum,drone,bumble,whir,fizz,fuzz,hiss,sing,murmur,whisper,zizz,bombinate,bombilate,susurrate,sibilate