noun / verb
drone
A continuous low, unvarying sound.
The low drone of the refrigerator fills the quiet kitchen.
Etymology
An imitative humming word. The sound and the male bee's name are historically associated, but the exact earliest development is uncertain.
More examples
- We fall asleep to the drone of distant traffic.
- The air conditioner drones all afternoon.
- He drones on about office rules until everyone stops listening.
Forms
drone · drones · droned · droning