whir

/wɜr/
verb
  1. To make a low, continuous, buzzing or humming sound, like a machine or insect.
    • The fan began to whir as soon as I turned it on.
    • I could hear the drone whirring high above the field.
    • The computer's cooling fan whirs quietly in the background.
noun
  1. A low, continuous buzzing or humming sound.
    • The whir of the sewing machine filled the room.
    • I woke up to the whir of the coffee grinder.
    • The only sound was the whir of the air conditioner.
Antonyms