whir

whir
/(h)w_r/

Verb
(esp. of a machine or a bird’s wings) Make a low, continuous, regular sound.

Noun
A sound of such a type: “the whir of the projector”.

Synonyms
verb. whirr – buzz – hum – zoom – drone – whiz noun. whirr – buzz – drone – hum – whizz – whiz – zoom