WHIRR

whir, whirr, whirring, birr

(noun) sound of something in rapid motion; “whir of a bird’s wings”; “the whir of the propellers”

churr, whirr

(verb) make a vibrant sound, as of some birds

whizz, whiz, whirr, whir, birr, purr

(verb) make a soft swishing sound; “the motor whirred”; “the car engine purred”

Source: WordNet® 3.1

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Etymology

Verb

whirr (third-person singular simple present whirrs, present participle whirring, simple past and past participle whirred)

To move or vibrate (something) with a buzzing sound.

(intransitive) To make a sibilant buzzing or droning sound.

(transitive) To cause (something) to make such a sound.

Synonyms

• (make a sibilant buzzing or droning sound): buzz, drone, hum, purr, whine, whistle, whizz

• (cause (something) to make such a sound)

Noun

whirr (plural whirrs)

A sibilant buzz or vibration; the sound of something in rapid motion.

A bustle of noise and excitement.

Synonyms

• (sibilant buzz or vibration): buzz, drone, hum, purr, whine, whistle, whizz

• (bustle of noise and excitement): bustle, hustle

Source: Wiktionary

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