The word is droning. It means to make a continuous low humming sound.
1. a low humming sound (noun) 2. a male bee (noun)
a humming sound to show you that it is secure.
An abnormal humming could be emitted from the alternator, water pump, the a/c pump, any number of things.
that would be the wings, like all flying insects that make a buzzing sound.
To make a humming or hissing sound, like an arrow or ball flying through the air; to fly or move swiftly with a sharp hissing or whistling sound., A hissing and humming sound.
Hummingbirds got their name from the humming sound their wings make as they beat rapidly in flight, which can sound like a hum. This noise is created by the rapid movement of the wings and is a key characteristic of these small birds.
The annoying humming sound of a swarm of bees.
The buttock., To make murmuring or humming sound., A humming noise.
id say type and size of tire, and if bearings are bad either or will make that humming sound.
it would depend on what kind of humming sound you are referring too. If you are over due on a transmission service or what not it will humm at higher speeds and as you slow down the humming slows with it, or if your brakes have gone bad it will make a humming sound once you hit over 30 mph. it could be a lot of things but those are some options to check out
wheel bearing