A drone of voices was audible through the closed window.
The professor's voice continued to drone on in the background as I daydreamed about my perfect vacation.
Eric's quadcopter drone has a lot of neat features, including autopilot and an aerobatic mode.
If we let him, Michael will drone on for hours about European politics.
It came in the form of a drone who told him in her second language that information of that kind was not available.
But flies of the drone-fly kind cannot sting, and, so far as is known, are perfectly innocuous and edible.
The action of the bees themselves makes this point clear, for when the season of mating is past the drone is no longer needed, the providing of winter stores taking first place in the economy of the hive.
He fell asleep quickly to the drone of the ceiling fan.
His new remote-controlled drone is equipped with a camera to capture stunning, aerial footage.
I was always able to tell when Peter pulled into the driveway because of the recognizable drone from his old car.
My bluetooth headphones have begun to drone intermittently when they are low on battery.
This forcibly suggests that the drone-fly mimics a honey-bee not only in appearance but also in the feel of its hairs or the nature of its buzz.
The annoying drone emitting from that overhead light is a sure sign that the fixture needs to be replaced.
The drone coming from her laptop was so annoying that I got up and moved tables.
Please don't drone on and on about your new girlfriend like you always do.