the male bee with, esp a honeybee, that has no sting and whose sole function is to mate with the queen

somebody who lives off others

a remotely-controlled pilotless aircraft, missile, or ship

a droning sound

any of the usu three pipes on a set of bagpipes that sounds a fixed continuous notes

an unvarying sustained bass note

to make a sustained deep murmuring or buzzing sound

(often + on) to talk persistently and tediously in a monotonous tone