whir
verb
[ wəː ]
• (of something rapidly rotating or moving to and fro) make a low, continuous, regular sound.
• "the ceiling fans whirred in the smoky air"
whir
noun
• a whirring sound.
• "the whir of the projector"
Origin:
late Middle English (in the sense ‘move with a whirring sound’): probably of Scandinavian origin; compare with whirl.
