What does whir mean?
Whir is a word for the quick, low humming sound made by machinery or other rapidly moving parts. Used as a verb, it describes something spinning, rotating, or operating with that sound: a fan may whir in the ceiling, while wheels whir over a smooth road. Used as a noun, whir names the sound itself, often one that suggests constant motion and mechanical energy. The word is especially associated with fans, engines, turbines, saws, and similar machinery, although it can describe any rapid movement with a faint buzzing or humming noise. Compared with hum, whir tends to be shorter, sharper, and more suggestive of mechanical motion; compared with buzz, it is usually lower in pitch and less harsh. Although relatively uncommon in everyday speech, whir is useful in descriptive and literary writing because it conveys both sound and movement in a single, vivid expression.
To move or rotate rapidly with a low humming or buzzing sound.
"The ceiling fan whirred steadily above the table."
Often used intransitively with machinery, fans, wheels, or other moving parts.
A low, continuous humming or buzzing sound produced by something rotating or moving rapidly.
"A whir of machinery came from the workshop next door."
The plural is used for separate instances of the sound, although the noun is uncommon in ordinary usage.
"Soft whirs came from the small fans on the server racks."
Whir captures the moment machinery breaks into motion, giving spinning wheels and turning blades a sound that makes them seem almost alive.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does whir come from?
Whir appeared in English in the early 17th century in forms such as whir and whirren. It is an imitative word, formed to represent a rapid, low humming or buzzing noise rather than to reproduce a precisely identifiable source. The variant whirr is closely related, and the word has traditionally been associated with whirl, which developed overlapping senses of rapid spinning and the movement associated with it.
Related word forms
How whir is actually used
Whir is a descriptive word, especially common in writing about fans, engines, wheels, blades, and other rapidly moving machinery. It is more literary and evocative than hum or buzz. British speakers commonly use the non-rhotic pronunciation /wɜː/, while the standard US pronunciation includes the r: /wɜːr/.
Easily confused with whir
Whirl primarily means to spin or move in a rapid circular motion, whereas whir more specifically evokes the low humming sound produced by that movement.