whirr

Plural: whirrs

Noun

• sound of something in rapid motion
• A sibilant buzz or vibration; the sound of something in rapid motion.
• A bustle of noise and excitement.
• The vibrating sound made by a panther in its throat when contented.

Verb

• make a soft swishing sound
  • "the motor whirred"
• make a vibrant sound, as of some birds
• To move or vibrate (something) with a buzzing sound.
• To make a sibilant buzzing or droning sound.
• To cause (something) to make such a sound.
• (of a panther) To make a vibrating sound in its throat when contented, much like the domestic cat’s purr.
• -ED, -ING, -S to whir

Synonyms

birr, churr, purr, whir, whirring, whiz, whizz, bustle, buzz, drone, hum, hustle, whine, whistle