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.
An auditory tone of low pitch or volume.
A pale colour, or one seen underneath another colour.
A low state of the physical faculties.
An implicit message perceived subtly alongside, but not detracting noticeably from, the explicit message conveyed in or by a book, film, verbal dialogue or similar (contrast with overtone); an undercurrent.
To accompany as an undertone.
To say or speak in an undertone.
To present as less important, noticeable or prominent.