A humming or deep murmuring sound.
One of the fixed-pitch pipes on a bagpipe.
One who performs menial or tedious work.
A person without the ability to think critically and independently, especially one who follows a group blindly; a non-player character.
A remotely controlled aircraft, an unmanned aerial vehicle (UAV).
A Toyota HiAce or a similar van, especially one used by Ugandan state agents to kidnap opposition members.
A male ant, bee or wasp, which does not work but can fertilize the queen.
A genre of music that uses repeated lengthy droning sounds.
A low-pitched hum or buzz.
To speak in a monotone way.
To produce a low-pitched hum or buzz.
To kill with a missile fired by unmanned aircraft.
A similar sound made by a human.
The rumbling sound made by a human's hungry stomach.
An aggressive grumbling.
A deep, rumbling, threatening sound made in the throat by an animal.
A low-pitched rumbling sound produced with a wind instrument.
To play a wind instrument in a way that produces a low-pitched rumbling sound.
To utter a deep guttural sound, as an angry animal; to give forth an angry, grumbling sound.
Of a wind instrument: to produce a low-pitched rumbling sound.
To send a user a message via the Growl software library.
To express (something) by growling.