whirs is a form of:

Whir



noun
1.
(Whizzing or buzzing sound caused by rapid motion) សូរង៉ូងៗ, សូរស្រម៉ុក, សូរងូងៗ (ដូចស្រមុក), ការហួច, ស្នូរហួច, ស្នូរបក្សីខ្លះយំ, សូរគ្រលួច, សូរឆ្វេច
Example: The whir of wings.
adjective
1.
ដែលសូរវែង, ដែលសូរយូរ, សូរយឺត
verbpast tense: whirred ; past participle: whirred ; present participle: whirring ;
1.
(INTRANSITIVE) (to fly revolve. vibrate, etc., with a whizzing or buzzing sound) បន្លឺសូរង៉ូងៗ, ហួច, ផ្លុំកញ្ចែ, ធ្វើអោយឮសូរគ្រលួចឬសូឆ្វេច, សូរឃូរខ, ហៅ
ENGLISH MEANING
noun
1.
A buzzing or whizzing sound produced by rapid or whirling motion; as, the whir of a partridge; the whir of a spinning wheel.
verbpast tense: whirred ; past participle: whirred ; present participle: whirring ;
1.
(INTRANSITIVE) To whirl round, or revolve, with a whizzing noise; to fly or more quickly with a buzzing or whizzing sound; to whiz.
2.
(TRANSITIVE) To hurry a long with a whizzing sound.